@article{PismaZhETF.29.688,
    title = {Generation in the $3.3-3.6\mu^m$ region in condensed nitrogen},
    author = {Zaroslov, D. Yu. and Karlov, N. V. and Kaslin, V. M. and Kovalev, I. O. and Kuz'min, G. P. and Prokhorov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {29},
    issue = {11},
    pages = {688},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22200.shtml},
}