TWO-PHONON PROGRESSIONS ASSOCIATED WITH VIBRONIC EXCITONS IN LAYERED 3d-METAL COMPOUNDS G. Benedek, I. Pollini et W. BauhoferJ. Phys. Colloques, 42 C6 (1981) C6-301-C6-304DOI: https://doi.org/10.1051/jphyscol:1981687
