@article{PismaZhETF.4.236,
    title = {Generation of Electromagnetic Oscillations in an Open Resonator},
    author = {Rusin, F. S. and Bogomolov, G. D.},
    journal = {Письма в ЖЭТФ},
    volume = {4},
    issue = {6},
    pages = {236},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24880.shtml},
}