@article{PismaZhETF.7.408,
    title = {$SO_2$ Submillimeter Laser Generating at Wavelengths 0.141 and 0.193 mm},
    author = {Dyubko, S. F. and Svich, V. A. and Valitov, R. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {7},
    issue = {11},
    pages = {408},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25802.shtml},
}