@article{PismaZhETF.1.1,
    title = {Unstable quarks and their detection},
    author = {Zel'dovich, Ya. B.},
    journal = {Письма в ЖЭТФ},
    volume = {1},
    issue = {4},
    pages = {1},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24412.shtml},
}