@article{PismaZhETF.16.40,
    title = {Effective Pulsed Copper-vapor Laser with High Average Generation Power},
    author = {Isaev, A. A. and Kazaryan, M. A. and Petrash, G. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {16},
    issue = {1},
    pages = {40},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26722.shtml},
}