@article{PismaZhETF.28.696,
    title = {Observation of inverse radiationless transitions when polyatomic molecules are excited by IR laser emission},
    author = {Ambartsumyan, R. V. and Makarov,  and G, N. and Puretskii, A. A.},
    journal = {Письма в ЖЭТФ},
    volume = {28},
    issue = {11},
    pages = {696},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24263.shtml},
}