@article{PismaZhETF.17.254,
    title = {Observation  of Excess y-radiation   Fluxes   from  the  Region  of the Northern  Galactic  Pole},
    author = {Gal'per, A. M. and Kirillov-Ugryumov, V. G. and Luchkov, B. I. and Ozerov, Yu. V.},
    journal = {Письма в ЖЭТФ},
    volume = {17},
    issue = {5},
    pages = {254},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23553.shtml},
}