@article{PismaZhETF.7.174,
    title = {Q-switching of a $CO_2$ Laser with a Saturating Filter Based on Boron Trichloride},
    author = {Karlov, N. V. and Kuz'min, G. P. and Petrov, Yu. N. and Prokhorov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {7},
    issue = {5},
    pages = {174},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25609.shtml},
}