INTERNAL AND EXTERNAL PHONONS IN MONOCLINIC TETRACYANOETHYLENE S. L. Chaplot, A. Mierzejewski, J. Lefebvre, G. S. Pawley et T. LutyJ. Phys. Colloques, 42 C6 (1981) C6-584-C6-586DOI: https://doi.org/10.1051/jphyscol:19816170
