@article{PismaZhETF.10.347,
    title = {New Possibility of Explaining the Complex Form of the Energy Spectrum of Ultrahigh Energy Primary Cosmit Rays},
    author = {Kulikov, G. V. and Fomin, Yu. A. and Khristiansen, G. B.},
    journal = {Письма в ЖЭТФ},
    volume = {10},
    issue = {7},
    pages = {347},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25742.shtml},
}