ULTRASONIC PHONONS IN Hg0.8Mn0.2Te : DEPENDENCES OF ELASTIC MODULI ON PRESSURE AND TEMPERATURE M. H. Chao et R. J. SladekJ. Phys. Colloques, 42 C6 (1981) C6-667-C6-669DOI: https://doi.org/10.1051/jphyscol:19816195