ROLE OF POLAR PHONONS IN THE CHEMICAL BOUND AT STRUCTURAL PHASE TRANSITIONS CHARACTERIZED BY REPETITIVE FOURIER SPECTROSCOPY F. Gervais et J. L. ServoinJ. Phys. Colloques, 42 C6 (1981) C6-415-C6-417DOI: https://doi.org/10.1051/jphyscol:19816121
