@article{PismaZhETF.8.363,
    title = {Control of the Frequency of a $CO_3$ Laser by a Boron Trichloride Filter},
    author = {Carlov, N. V. and Petrov, Yu. N. and Stel'makh, O. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {8},
    issue = {7},
    pages = {363},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26016.shtml},
}