@article{PismaZhETF.3.497,
    title = {Possible Presence of Relic Quarks in Cosmic Rays},
    author = {Feinberg, E. L.},
    journal = {Письма в ЖЭТФ},
    volume = {3},
    issue = {12},
    pages = {497},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24810.shtml},
}