Boller, A.; Scherrer, H.; Schadt, M.; Wild, P. (1972). "Low electrooptic threshold in new liquid crystals". Proceedings of the IEEE. 60 (8): 1002–1003. doi:10.1109/PROC.1972.8831. ISSN0018-9219.
Boller, A.; Scherrer, H.; Schadt, M.; Wild, P. (1972). "Low electrooptic threshold in new liquid crystals". Proceedings of the IEEE. 60 (8): 1002–1003. doi:10.1109/PROC.1972.8831. ISSN0018-9219.