NEUTRON SPECTROSCOPY OF INTERNAL PHONONS OF NAPHTHALENE AND ANTHRACENE CRYSTALS E. L. Bokhenkov, A. I. Kolesnikov, T. A. Krivenko, E. F. Shek, V. A. Dementjev et I. NatkaniecJ. Phys. Colloques, 42 C6 (1981) C6-605-C6-607DOI: https://doi.org/10.1051/jphyscol:19816177