Contributed Papers at Scientific Meetings

(most recent first)

113. H. T. Stokes and B. J. Campbell, "Irreducible Representations for Generating (3+d)-Dimensional Modulated Structures," European Crystallographic Meeting (ECM28), Coventry, England, August 2013.

112. H. T. Stokes, "Singing the Harmonics," National Meeting of the American Association of Physics Teachers, Portland, Oregon, July 2013.

111. S. van Orden, H. Stokes, and B. Campbell, "ISOSUBGROUP: A Web Resource for Generating Isotropy Subgroups of Crystallographic Space Groups," 27th Annual Student Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 2013.

110. B. J. Campbell and H. T. Stokes, "Representational Analysis of Magnetic Structures," JANA Workshop on Magnetic Structures, Praha, Czech Republic, October 2012.

109. H. T. Stokes, "PC Tablets and Lecture Clips," National Meeting of the American Association of Physics Teachers, Philadelphia, Pennsylvania, July 2012.

108. H. T. Stokes, "Lecture Clips," 31st Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Rexburg, Idaho, March 2012.

107. B. J. Campbell, H. T. Stokes, J. S. O. Evans, and R. E. Dinnebier, "Symmetry-Mode Analysis as a Technique for Solving and Refining Distorted Structures," 9th TOPAS Users Meeting, Bad Herrenalb, Germany, November 2011.

106. H. T. Stokes and B. J. Campbell, "Computer-Readable Database for Magnetic Space Groups," XXII Congress of the International Union of Crystallography, Madrid, Spain, August 2011.

105. R. Cordes and H. Stokes, "Irreducible Representations of Space Groups," 25th Annual Student Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 2011.

104. B. J. Campbell, S. Kerman, J. S. O. Evans, F. Perselli and H. T. Stokes, "Symmetry Detection via Symmetry-Mode Analysis," Annual Meeting of the American Crystallographic Association, Chicago, Illinois, July 2010.

103. H. T. Stokes, B. J. Campbell and S. van Smaalen, "A New Table of (3+d)-Dimensional Superspace Groups," Annual Meeting of the American Crystallographic Association, Chicago, Illinois, July 2010.

102. H. T. Stokes, "Designing an Independent Study Physics Course," National Meeting of the American Association of Physics Teachers, Portland, Oregon, July 2010.

101. H. T. Stokes, "Designing an Independent Study Physics Course," 29th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Pocatello, Idaho, April 2010.

100. H. T. Stokes, S. van Smaalen and B. Campbell, "Superspace Groups of (3+d)-Dimensional Superspace," APERIODIC'09, 6th International Conference on Aperiodic Crystals, Liverpool, United Kingdom, September 2009.

99. B. J. Campbell, H. T. Stokes, J. S. O. Evans, F. Perselli, S. C. Kerman and K. Satyavarapu, "Nature's Basis for Parameterizing Structural Phase Transitions," Annual Meeting of the American Crystallographic Association, Toronto, Canada, July, 2009.

98. B. Xu, J. Dong, H. Stokes and D. Hatch, "Study of Transformation Mechanism for the Corundum-to-Rh2O3(II) Transition in Al2O3," 2009 COMPRES Annual Meeting, Bretton Woods, New Hampshire, June 2009.

97. H. T. Stokes and B. J. Campbell, "Order Parameters for Phase Transitions to Structures with Incommensurate Modulations," XXI Congress of the International Union of Crystallography, Osaka, Japan, August 2008.

96. B. J. Campbell, J. S. O. Evans, F. Perselli, and H. T. Stokes, "Structural Phase Transitions: Refining Distortion-Mode Amplitudes instead of Atomic Coordinates," XXI Congress of the International Union of Crystallography, Osaka, Japan, August 2008.

95. B. J. Campbell and H. T. Stokes, "Generating and Visualizing One-Dimensional Incommensurate Structural Modulations," Annual Meeting of the American Crystallographic Association, Knoxville, Tennessee, May 2008.

94. H. T. Stokes, "Engaging the Students," 27th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Nampa, Idaho, March 2008.

93. H. T. Stokes, "Sonic Booms," 26th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Logan, Utah, March 2007.

92. K. Esfarjani and H. Stokes, "First-Principles Calculation of Anharmonic Force Constants," Meeting of the American Physical Society, Denver, Colorado, March 2007.

91. H. T. Stokes, "Teaching Circuits with Lightbulbs," 25th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Rexburg, Idaho, March 2006.

90. B. Xu, J. Dong, H. Stokes, and D. Hatch, "First-Principles Study of High-Pressure Phase Transitions in Si3N4." Meeting of the American Physical Society, Baltimore, Maryland, March 2006.

89. D. M. Hatch, H. T. Stokes, J. Gunter, J. J. Dong, and J. P. Lewis, "General Method for Determining Atomic Pathways in Reconstructive Phase Transitions: SiC and GaN," XX Congress of the International Union of Crystallography, Florence, Italy, August 2005.

88 H. T. Stokes, B. Campbell, and D. M. Hatch, "New Graphical User Interface for Calculating Structural Distortions Using the ISOTROPY Software," XX Congress of the International Union of Crystallography, Florence, Italy, August 2005.

87. H. Stokes, "Standing Waves on a Violin String," National Meeting of the American Association of Physics Teachers, Salt Lake City, Utah, August 2005.

86. B. Xu, J. Dong, H. Stokes, and D. Hatch, "First Principles Study of High Pressure Phase Transitions in Si3N4," 4th Annual COMPRES Meeting, New Paltz, New York, June 2005.

85. R. Hansen, H. T. Stokes, D. M. Hatch, and J. R. Lewis, "Computer Analysis of fcc-hcp Structural Phase Transition in Pb," 19th Annual Spring Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 2005.

84. H. T. Stokes, "Finding Harmonics on a Violin String," 24th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Salt Lake City, Utah, March 2005.

83. H. T. Stokes, D. M. Hatch, J. J. Dong, J. Gunter, H. Wang, and J. P. Lewis, "Bilayer Sliding Mechanism for the Zincblende to Rocksalt Transition in SiC." Meeting of the American Physical Society, Los Angeles, California, March 2005.

82. H. T. Stokes, "Having Fun with the Doppler Effect," 23rd Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Pocatello, Idaho, March 2004.

81. J. Gunter, J. Lewis, H. Stokes, and D. Hatch, "Transitions in SiC," Meeting of the Four Corners Section of the American Physical Society, Tempe, Arizona, October 2003.

80. H. T. Stokes, "Teaching Students to Graph the Motion of Objects," 127th National Meeting of the American Association of Physics Teachers, Madison, Wisconsin, August 2003.

79. H. T. Stokes and W. D. Peterson, "Buoyancy of Air: An Attention-Grabbing Demonstration," 127th National Meeting of the American Association of Physics Teachers, Madison, Wisconsin, August 2003.

78. H. T. Stokes, "Classroom Communications Systems at BYU," 22nd Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Ogden, Utah, March 2003.

77. D. Hatch, H. Stokes, and D. Trinkle, "Obtaining Microscopic Mechanisms of Reconstructive Phase Transitions in Crystalline Solids." Meeting of the American Physical Society, Austin, Texas, March 2003.

76. L. L. Boyer, M. J. Mehl, M. M. Ossowski, and H. T. Stokes, "A Self-Consistent Atomic Deformation Method for Application Density Functional Theory." Meeting of the American Physical Society, Austin, Texas, March 2003.

75. H. T. Stokes, "Personal Response Systems Are Not for Everyone," 126th National Meeting of the American Association of Physics Teachers, Austin, Texas, January 2003.

74. J. Peatross and H. T. Stokes, "New Online Optics Textbook," Annual Meeting of the Optical Society of America, Orlando, Florida, October 2002.

73. D. M. Hatch and H. T. Stokes, "Symmetry Considerations of Multi-Domain Formation in Phase Transitions," 7th International Symposium on Ferroic Domains and Mesoscopic Structures," Toulon, France, September 2002.

72. G. M. Chechin, V. P. Sakhnenko, D. M. Hatch, and H. T. Stokes, "Bushes of Modes as New Types of Nonlinear Vibrations in Mechanical Systems with Discrete Symmetry." 4th Euromech Nonlinear Oscillations Conference, Moscow, Russia, August 2002.

71. H. T. Stokes and J. B. Peatross, "Measuring the Size of a Star," 125th National Meeting of the American Association of Physics Teachers, Boise, Idaho, August 2002.

70. H. T. Stokes and J. B. Peatross, "Measuring the Size of Stars," 21st Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Boise, Idaho, March 2002.

69. D. R. Trinkle, R. G. Hennig, J. W. Wilkins, D. M. Hatch, H. T. Stokes, M. D. Jones, R. C. Albers, and S. G. Srinivasan, "Complete Titanium HCP to Omega Transformation Mechanism." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

68. D. M. Hatch, H. T. Stokes, S. G. Srinivasan, T. Lookman, and A. Saxena, "Analysis of BCC-HCP Reconstructive Transformation in Ti by Coupling Symmetry to First-Principles Calculations." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

67. H. T. Stokes and D. M. Hatch, "Symmetries of Multidomain Structures Resulting from a Phase Transition." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

66. W. N. Mei, D. M. Hatch, H. T. Stokes, and L. L. Boyer, "Ground State Structure Search for Fluoroperovskites through Lattice Instability." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

65. L. L. Boyer, M. M. Ossowski, M. J. Mehl, and H. T. Stokes, "Bonding Charge from Nonspherically Distorted Ions in a Model with Full Ionic Charges." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

64. M. M. Ossowski, L. L. Boyer, M. J. Mehl, and H. T. Stokes, "Calculation of Elastic Constants in Complex Oxides by Self-Consistent Atomic Deformation (SCAD) method." Meeting of the American Physical Society, Indianapolis, Indiana, March 2002.

63. D. Hatch ahd H. Stokes, "Microstructure Design of Domains Arising from a Phase Transition." Plasticity 2002, Aruba, West Indies, January 2002.

62. H. T. Stokes, "Optical Resolution of the Eye," 124th National Meeting of the American Association of Physics Teachers, Philadelphia, Pennsylvania, January 2002.

61. H. T. Stokes, M. V. Pack, and J. B. Peatross, "Viewing Gaussian Beams Using a Single Lens as an Interferometer," 123rd National Meeting of the American Association of Physics Teachers, Rochester, New York, July 2001.

60. H. T. Stokes and J. B. Peatross, "Enhancing Optics Education at Brigham Young University," 123rd National Meeting of the American Association of Physics Teachers, Rochester, New York, July 2001.

59. G. M. Chechin, O. A. Lavrova, V. P. Sakhnenko, H. T. Stokes, D. M. Hatch, "New Approach to Nonlinear Dynamics of Fullerenes and Fullerites," 5th Biennial International Workshop in Russia, Fullerenes and Atomic Clusters, IWFAC'2001, St. Petersburg, Russia, July 2001.

58. G. M. Chechin, V. P. Sakhnenko, H. T. Stokes, A. D. Smith, D. M. Hatch, "Nonlinear Normal Modes and Irreducible Bushes of Modes for Systems with Space Symmetry," XXIX Summer School, Advanced Problems in Mechanics, St. Petersburg, Russia, June 2001.

57. S. G. Srinivasan, D. M. Hatch, T. Lookman, A. B. Saxena, H. T. Stokes, "Analysis of BCC-HCP Transformation in Ti by Coupling Symmetry to First-Principles Calculations," Annual Meeting of the Division of Computational Physics, American Physical Society, Cambridge Massachusettes, June 2001.

56. L. L. Boyer, M. J. Mehl, and H. T. Stokes, "Calculation of Energies for Ferroelectric Distortions in BaTiO3 Using Density Functional Methods," Meeting of the American Physical Society, Seattle, Washington, March 2001. Abstract published in Bull. Am. Phys. Soc. 46, 487 (2001).

55. D. Hatch, T. Lookman, A. Saxena, and H. Stokes, "Symmetry Based Analysis of BCC-HCP and Related Reconstructive Transitions," Meeting of the American Physical Society, Seattle, Washington, March 2001. Abstract published in Bull. Am. Phys. Soc. 46, 96 (2001).

54. H. T. Stokes, "Standing Waves in a Pipe," 20th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Provo, Utah, March 2001.

53. T. Fowers, H. T. Stokes, J. Peatross, "New Generation of Animations," 20th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Provo, Utah, March 2001.

52. H. T. Stokes, "Waves on a Spring," 20th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Provo, Utah, March 2001.

51.H. T. Stokes, "Using Computer Animations to Teach about Polarization of Light," 19th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Twin Falls, Idaho, March 2000.

50. H. T. Stokes, "Bungee Jumping," 19th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Twin Falls, Idaho, March 2000.

49. L. Barnes and H. T. Stokes, "Flexible Sets of Basis Functions for Atomic Wavefunctions in Crystalline Solids," 14th Annual Spring Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 2013.

48. G. M. Chechin, V. P. Sakhnenko, M. Yu. Zehtser, H. T. Stokes, S. Carter, and D. M. Hatch, "Bushes of Normal Modes for Nonlinear Mechanical Systems with Discrete Symmetry," Third European Nonlinear Oscillations Conference (ENOC), Lyngby, Denmark, August 1999. Paper published in electronic proceedings at www2.imm.dtu.dk/~mps/ENOC/proceedings/Chechin/.

47. H. T. Stokes, A. D. Smith, D. M. Hatch, G. M. Chechin, V. P. Sakhnenko, and M. Yu. Zehtser, "Group-Theoretical Methods for Nonlinear Dynamics in Crystals," International Union of Crystallography XVIIIth Congress and General Assembly, Glasgow, Scotland, August 1999.

46. H. T. Stokes, "Using Computer Resources in the Classroom," Centennial Meeting of the American Physical Society, Atlanta, Georgia, March 1999.  Abstract published in Bull. Am. Phys. Soc. 44, 1427 (1999).

45. H. T. Stokes, "Computer Animations of an Ideal Gas," 18th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Logan, Utah, March 1999.

44. H. T. Stokes, "Red October," 18th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Logan, Utah, March 1999.

43 S. G. Carter, H. T. Stokes, D. M Hatch, G. M. Chechin and V. P. Sakhnenko, "Classifying Bushes of Molecular Vibrational Modes According to their Universality Classes," Meeting of the Four Corners Section of the American Physical Society, Provo, Utah, October 1998.

42. H. T. Stokes, "Harmonics on a Violin String," Meeting of the Four Corners Section of the American Physical Society, Provo, Utah, October 1998.

41. C. J. Howard and H. T. Stokes, "Group Theoretical Analysis of Octahedral Tilting in Perovskites," International Congress on New CMR, GMR and High Tc Effects; Structure Determined by High Resolution Analytical TEM, XRD and Neutron Diffraction, Melbourne, Australia, June 1998.

40. H. T. Stokes, A. D. Smith, D. M. Hatch, G. M. Chechin, and V. P. Sakhnenko, "Group Theoretical Methods Applied to Non-Linear Dynamics in Crystals," Meeting of the Four Corners Section of the American Physical Society, Albuquerque, New Mexico, April 1998.

39. L. L. Boyer, H. T. Stokes, M. J. Mehl, and W. E. Pickett, "Characterization of the Electronic Structure of CaVnO2n+1 Using a Self-Consistent Atomic Deformation Model," Meeting of the American Physical Society, Los Angeles, California, March 1998. Abstract published in Bull. Am. Phys. Soc. 43, 480 (1998).

38. C. J. Howard and H. T. Stokes, "Group Theoretical Analysis of Octahedral Tilting in Perovskites," 22nd Annual Condensed Matter Physics Meeting of the Australian and New Zealand Institute of Physics, Wagga Wagga, NSW, Australia, February 1998.

37. L. L. Boyer, H. T. Stokes, and M. J. Mehl, "Calculation of Polarization Using a Self-Consistent Atomic Deformation Model," Meeting of the American Physical Society, Kansis City, Missouri, March 1997. Abstract published in Bull. Am. Phys. Soc. 42, 399 (1997).

36. R. A. Hatt, D. M. Hatch, and H. T. Stokes, "Comments on Order-Parameter Profiles in Ferroic Phase Transitions," Meeting of the American Physical Society, Kansis City, Missouri, March 1997. Abstract published in Bull. Am. Phys. Soc. 42, 742 (1997).

35. H. T. Stokes, "Using the World-Wide Web in Course Management," 16th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Salt Lake City, Utah, March 1997.

34. R. A. Hatt, D. M. Hatch, and H. T. Stokes, "Twin Laws and the Symmetry of Domain Walls," 1996 Annual Meeting of the Utah Academy of Science, Arts, and Letters, Orem, Utah, April 1996. Abstract to be published in Encyclia.

33. D. M. Hatch, R. A. Hatt, and H. T. Stokes, "Systematic Approach to the Study of Domain Twins in Ferroic Phase Transitions," International Symposium on Ferroic Domains and Mesoscopic Structures, Vienna, Austria, March 1996. Published in Ferroelectrics, 191, 29--35 (1997).

32. H. T. Stokes, "My Experience with Peer Instruction," 15th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Boise, Idaho, March 1996.

31. G. Ceder, P. D. Tepesch, A. F. Kohan, G. D. Garbulsky, C. Coley, H. T. Stokes, L. L. Boyer, M. J. Mehl, and B. P. Burton, "First-Principles Computation of the CaO-MgO Phase Diagram: Importance of the Oxygen Size Effect," 97th Meeting of the American Ceramic Society, Cincinnati, Ohio, May 1995. Title published in Amer. Ceramic Soc. Bull., March 1995, p.~235.

30. H. T. Stokes and L. L. Boyer, " Ab Initio Calculation of Charge Transfer in CaCuO2," Meeting of the American Physical Society, Pittsburgh, Pennsylvania, March 1994. Abstract published in Bull. Am. Phys. Soc. 39, 184 (1994).

29. L. L. Boyer, H. T. Stokes, and M. J. Mehl, "Self-Consistent Potential Induced Breathing Model Calculations for Longitudinal Modes in MgO," Third Williamsburg Workshop on First-Principles Calculations for Ferroelectricity, Williamsburg, Virginia, February 1994. Published in Ferroelectrics164, 177--181 (1995).

28. H. T. Stokes, "Using Symmetry in Frozen Phonon Calculations," Third Williamsburg Workshop on First-Principles Calculations for Ferroelectricity, Williamsburg, Virginia, February 1994. Published in Ferroelectrics164, 183--188 (1995).

27. H. T. Stokes, "Writing Across the Curriculum---Physics Too?" 12th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Provo, Utah, March 1993.

26. K. J. Snow and H. T. Stokes, "Comparing Lattice Energies of the Possible Ordered Structures of a Monoclinic Phase of KCN," Seventh Annual Spring Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 1993.

25. B. J. Campbell, H. T. Stokes, and J. Boerio-Goates, "Pulsed NMR Studies of Ammonium Magnesium Langbeinite," Sixth Annual Spring Research Conference of the College of Physical and Mathematical Sciences, Brigham Young University, March 1992.

24. H. T. Stokes, "Computer Animation in the Classroom," 11th Annual Spring Meeting, Idaho-Utah Section of the American Association of Physics Teachers, Pocatello, Idaho, March 1992.

23. D. M. Hatch and H. T. Stokes, "Systematic Symmetry Analysis of Crystalline Phase Transitions," XVth International Congress and General Assembly, International Union of Crystallography, Bordeaux, France, July 1990.

22. D. M. Hatch and H. T. Stokes, "Symmetry Analysis of Phase Transitions and their Associated Microstructure," Eleventh European Crystallographic Meeting, Vienna, Austria, August 1988. Abstract published in Z. Krist.185, 79 (1988).

21. D. M. Hatch and H. T. Stokes, "Symmetry Analysis of a Ferroelastic Phase Transition in Solid Bromoform: With Associated Microstructure," Mineral Physics Meeting, Cambridge, England, February 1989. Published in Phase Transitions in Ferroelastic and Co-elastic Crystals, edited by E. K. H. Salje (Cambridge University Press, Cambridge, 1990), pp.~326--333.

20. D. M. Hatch, H. T. Stokes, and R. M. Putnam, "Space Group Representations Induced by Local Site Symmetries," XVI International Colloquium on Group Theoretical Methods in Physics, Varna, Bulgaria, June 1987. Published in Group Theoretical Methods in Physics, edited by H. D. Doebner, J. D. Hennig, and T. D. Palev (Springer, New York, 1988), pp.~326--333.

19. D. M. Hatch and H. T. Stokes, "Isotropy Subgroups for Reducible Representations of Space Groups," XV International Colloquium on Group Theoretical Methods in Physics, Philadelphia, October 1986. Published in XV International Colloquium on Group Theoretical Methods in Physics, edited by R. Gilmore (World Scientific, Singapore, 1987), pp.~710--715.

18. D. M. Hatch, J. S. Kim, and H. T. Stokes, "Renormalization-Group Analysis of Structural Phase Transitions Induced by Six-Component Order Parameter," Meeting of the American Physical Society, Las Vegas, March 1986. Abstract published in Bull. Am. Phys. Soc. 31, 293 (1986).

17. J. S. Kim, D. M. Hatch, and H. T. Stokes, "Classification of Continuous Phase Transitions in Commensurate Solids," Meeting of the American Physical Society, Las Vegas, March 1986. Abstract published in Bull. Am. Phys. Soc. 31, 293 (1986).

16. H. T. Stokes, D. M. Hatch, and J. S. Kim, "Classification of Continuous Phase Transitions in Landau and Renormalization-Group Theories," Meeting of the American Physical Society, Las Vegas, March 1986. Abstract published in Bull. Am. Phys. Soc. 31, 293 (1986).

15. D. M. Hatch, H. T. Stokes, J. S. Kim, and J. W. Felix, "Selection of Stable Fixed Points by the Toledano-Michel Symmetry Criterion: Six-Component Example," XIV International Colloquium on Group Theoretical Methods in Physics, Seoul, Korea, August 1985. Unpublished.

14. D. M. Hatch and H. T. Stokes, "Ferroelectric Transitions in Diperiodic Systems," Sixth International Meeting on Ferroelectricity, Kobe, Japan, August 1985. Published in J. Jap. Appl. Phys. 24, Supplement 24-2, 173--175 (1985).

13. J. S. Kim, D. M. Hatch, and H. T. Stokes, "Analysis of Landau Potentials for Six-Dimensional Order Parameters and Realization of Non-Maximal Isotropy Subgroups," Sixth International Meeting on Ferroelectricity, Kobe, Japan, August 1985. Published in J. Jap. Appl. Phys. 24, Supplement 24-2, 170--172 (1985).

12. H. T. Stokes and D. M. Hatch, "Computer Algorithm for Finding the Standard Setting of a Space Group," Meeting of the American Physical Society, Baltimore, March 1985. Abstract published in Bull. Am. Phys. Soc. 30, 372 (1985).

11. D. M. Hatch and H. T. Stokes, "Listings of Possible Structural Phase Transitions," 13th International Colloquium on Group Theoretical Methods in Physics, College Park, Maryland, May 1984. Published in Group Theoretical Methods in Physics, edited by W. W. Zachary (World Scientific, Singapore, 1984), pp. 427--430.

10. H. T. Stokes and D. M. Hatch, "A Computer Algorithm for Generating the Isotropy Subgroups of the 230 Space Groups," Meeting of the American Physical Society, Detroit, March 1984. Abstract published in Bull. Am. Phys. Soc. 29, 396 (1984).

9. D. M. Hatch and H. T. Stokes, "A Simple Procedure for the Determination of Allowed Lower-Symmetry Phases in Continuous Phase Transitions," Meeting of the American Physical Society, Detroit, March 1984. Abstract published in Bull. Am. Phys. Soc. 29, 396 (1984).

8. H. T. Stokes, "Order-Disorder Phase Transition in KCN," Meeting of the Americ Physical Society, Los Angeles, March 1983. Abstract published in Bull. Am. Phys. Soc. 28, 428 (1983).

7. H. T. Stokes, H. E. Rhodes, P.-K. Wang, C. P. Slichter, and J. H. Sinfelt, "NMR of Small Platinum Particles," Materials Research Society Symposium on Nuclear and Electron Resonance Spectroscopies Applied to Materials Science, Boston, Nov. 1980. Published in Nuclear and Electron Resonance Spectroscopies Applied to Materials Science, edited by E. N. Kaufmann and G. K. Shenoy (North-Holland, New York, 1981), pp. 253--258.

6. H. T. Stokes, T. A. Case, and D. C. Ailion, "Relaxation Study of CN Reorientations in the Elastically Ordered Phase of NaCN and KCN," XXIth Congress Ampere, Delft, Holland, Aug. 1980. Published in Bull. Magn. Reson. 2, 231 (1980).

5. H. T. Stokes and C. P. Slichter, "Field Dependence Study of Pt NMR of Platinum Catalysts," Meeting of the American Physical Society, New York, March 1980. Abstract published in Bull. Am. Phys. Soc. 25, 273 (1980).

4. D. C. Ailion, H. T. Stokes, and T. A. Case, "Reorientational Motions in Ferroelastic and Ferroelectric Crystals," XXth Congress Ampere, Tallinn, USSR, Aug. 1978. Published in Proceedings of the XXth Congress Ampere, edited by E. Kundla, E. Lippmaa, and T. Saluvere (Springer, New York, 1979), p. 399.

3. H. T. Stokes, D. C. Ailion, and C. H. Wang, "Unusual NMR Phenomena in 1,2-difluorotetrachloroethane," XXth Congress Ampere, Tallinn, USSR, Aug. 1978. Published in Proceedings of the XXth Congress Ampere, edited by E. Kundla, E. Lippmaa, and T. Saluvere (Springer, New York, 1979), p. 134.

2. H. T. Stokes and D. C. Ailion, "Study of Weak Spin Diffusion by NMR: Applications to AgF," Meeting of the American Physical Society, San Diego, March 1977. Abstract published in Bull. Am. Phys. Soc. 22, 383 (1977).

1. H. T. Stokes and D. C. Ailion, "Slow Motion NMR of Dilute or Weak Spin Species," XIXth Congress Ampere, Heidelberg, Germany, Sept. 1976. Published in Proceedings of the XIXth Congress Ampere, edited by H. Brunner, K. H. Hauser, and D. Schweitzer (Groupement Ampere, Heidelberg-Geneva, 1976), pp. 433-436.