@article{PismaZhETF.19.482,
    title = {$CO_2$ laser operating at 10.6 $\mu$ with optical pumping at 9.6 $\mu$},
    author = {Balykin, V. I. and Golger, A. L. and Kolomiiskii, Yu. R. and Letokhov, V. S. and Tumanov, O. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {19},
    issue = {7},
    pages = {482},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27063.shtml},
}