1. See, e.g., K. F. Herzfeld and T. A. Litovitz, “Absorption and Dispersion of Ultrasonic Waves.” Academic Press, New York, 1959; J. Lamb, T. A. Litovitz, and C. M. Davis, in “Physical Acoustics” (W. P. Mason, ed.), Vol. IIA, Academic Press, New York, 1965; R. T. Beyer and S. V. Letcher, “Physical Ultrasonics.” Academic Press, New York, 1969.
2. Unified Hydrodynamic Theory for Crystals, Liquid Crystals, and Normal Fluids
3. Hydrodynamics of Liquid Crystals
4. CONJECTURES SUR L'ÉTAT SMECTIQUE
5. Ultrasonic study of liquid crystals