@article{PismaZhETF.60.240,
    title = {Magnetic interaction of self-focusing channels and fluxes of electromagnetic radiation: their coalescence, the accumulation of energy, and the effect of external magnetic fields on them},
    author = {Askar'yan, G. A. and Bulanov, S. V. and Pegoraro, F. and Pukhov, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {60},
    issue = {4},
    pages = {240},
    year = {1994},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20333.shtml},
}