@article{PismaZhETF.21.229,
    title = {Self-focusing in potassium vapor under two-photon resonant excitation},
    author = {Bakhramov, S. A. and Gulyamoy, U. G. and Drabovich, K. N. and Faizullaev, Ya. Z.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {21},
    issue = {4},
    pages = {229},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22293.shtml},
}