@article{PismaZhETF.12.125,
    title = {Broadening of Spectrum in Self Focusing of Light in Crystals},
    author = {Bondarenko, N. G. and Eremina, I. V. and Talanov, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {3},
    pages = {125},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26250.shtml},
}