Impurity induced first order Raman scattering of light byalkali-halide crystals Nguyen Xuan Xinh, A.A. Maradudin et R.A. Coldwell-HorsfallJ. Phys. France, 26 11 (1965) 717-735DOI: https://doi.org/10.1051/jphys:019650026011071700
