@article{PismaZhETF.15.191,
    title = {Superbroadening of the Spectrum of Ultrashort Pulses in Liquids and Glasses},
    author = {Il'ichev, N. N. and Korobkin, V. V. and Korsliunov, V. A. and Malyutin, A. A. and Okroashvili, T. G. and Pashinin, P. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {15},
    issue = {4},
    pages = {191},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26525.shtml},
}