@article{PismaZhETF.31.111,
    title = {Hyper-Raman scattering by polaritons in a centrally symmetric $SrTiO_3$ crystal},
    author = {Denisov, V. N. and Mavrin, B. N. and Podobedov, V. B. and Sterin, Kh. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {31},
    issue = {2},
    pages = {111},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20252.shtml},
}