@article{PismaZhETF.24.555,
    title = {Increase of the cross section and narrowing of the line of two-photon absorption as a result of the Dicke effect},
    author = {Barantsov, V. I. and Popov, A. K.},
    journal = {Письма в ЖЭТФ},
    volume = {24},
    issue = {10},
    pages = {555},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27772.shtml},
}