@article{PismaZhETF.21.333,
    title = {The number of fast ions in a laser plasma},
    author = {Silin, V. P.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {6},
    pages = {333},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22320.shtml},
}