@article{PismaZhETF.53.276,
    title = {Yields of heavy quarks at high energies},
    author = {Levin, E. M. and Ryskin, M. G. and Shabel'skii, Yu. M.},
    journal = {Письма в ЖЭТФ},
    volume = {53},
    issue = {6},
    pages = {276},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17406.shtml},
}