@article{PismaZhETF.14.421,
    title = {Gas Lasers at High Pressures},
    author = {Basov, N. G. and Belenov, E. M. and Danilychev, V. A. and Kerimov, O. M. and Kovsh, I. B. and Suchkov, A. F.},
    journal = {Письма в ЖЭТФ},
    volume = {14},
    issue = {7},
    pages = {421},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24923.shtml},
}