VIBRATIONAL DENSITY OF STATES OF AMORPHOUS AND CRYSTALLINE LIQUID CRYSTAL SUBSTANCES A.V. Bielushkin, I. Natkaniec, V.K. Dolganov et E.F. Sheka J. Phys. Colloques, 42 C6 (1981) C6-34-C6-36 DOI: 10.1051/jphyscol:1981609