A CALCULATION OF THE PHONON DISPERSION CURVES IN TRIGONAL AND MONOCLINIC SELENIUM WITH THE HELP OF A SINGLE VIBRATIONAL POTENTIAL M. Merian et J. EtchepareJ. Phys. Colloques, 42 C6 (1981) C6-608-C6-610DOI: https://doi.org/10.1051/jphyscol:19816178
