@article{PismaZhETF.32.520,
    title = {Generation of the $\omega$/2 harmonic in a laser plasma},
    author = {Kil'pio, A. V. and Malyutin, A. A. and Pashinin, P. P.},
    journal = {Письма в ЖЭТФ},
    volume = {32},
    issue = {8},
    pages = {520},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21785.shtml},
}