@article{PismaZhETF.23.3, title = {Threshold phenomena in Raman scattering of light by polaritons}, author = {Levinson, I. B. and Maksimov, I. L.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {23}, issue = {1}, pages = {3}, year = {1976}, doi = {}, url = {http://jetpletters.ru/ps/0/article_27407.shtml}, }