@article{PismaZhETF.27.557,
    title = {Possible mechanism of self-focusing in a plasma},
    author = {Korobkin, V. V. and Motylev, S. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {27},
    issue = {10},
    pages = {557},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23770.shtml},
}