@article{PismaZhETF.15.224,
    title = {Possibility of Occurrence of "Photon Cascade" in EPR Line Wing Saturation},
    author = {Aminov, N. M. and Kоchelaev, B. I.},
    journal = {Письма в ЖЭТФ},
    volume = {15},
    issue = {4},
    pages = {224},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26534.shtml},
}