@article{PismaZhETF.18.217,
    title = {Observation of gamma radiation of the source Cyg-3 in October, 1972},
    author = {Gal'ner, A. M. and Kirillov-Ugryumov, V. G. and Kurochkin, A. V. and Luchkov, B. I. and Yurkin, Yu. T.},
    journal = {Письма в ЖЭТФ},
    volume = {18},
    issue = {4},
    pages = {217},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23905.shtml},
}