@article{PismaZhETF.54.75,
    title = {Насколько редки распады $Z\to \gamma J/ \Psi$ и $Z\to \gamma \Upsilon$ (1S)?},
    author = {Ачасов, Н. Н.},
    journal = {Письма в ЖЭТФ},
    volume = {54},
    issue = {2},
    pages = {75},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_3459.shtml},
}