@article{PismaZhETF.53.77,
    title = {Induced $\chi^{(2)}$ gratings in glasses},
    author = {Zel'dovich, B. Ya. and Kapitskii, Yu. E. and Churikov, V. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {53},
    issue = {2},
    pages = {77},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17358.shtml},
}