Schill,G. Justus Liebigs Annalen der Chemie, 1966 , vol. 695, p. 65 - 76 Full Text Show Details McBride, J. Michael; Bertman, Steven B.; Cioffi, Donna Z.; Segmuller, Brigitte E.; Weber, Bruce A. Molecular Crystals and Liquid Crystals (1969-1991), 1988 , vol. 161, p. 1 - 24