1. Ultrasonic velocity and absorption of the nematic liquid crystal HBT
2. (eds.): Pure and Applied Physics, Chap. 5, New York 1969, p. 155
3. : Ultrasonic Propagation in Liquid Crystals, Advances in Liquid Crystals (edited by ), Vol. 3, New York 1978, p. 167
4. : Liquid crystals, Part II, edited by , New York 1969, p. 291