@article{PismaZhETF.12.383,
    title = {Origin of the X-radiation of the Metagalaxy},
    author = {Gnedin, Yu. N. and Dolginow, A. Z.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {7},
    pages = {383},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26334.shtml},
}