@article{PismaZhETF.32.684,
    title = {Quark-lepton families: from SU(5) to SU(8) symmetry Dzh. L},
    author = {Chkareuli, Dzh. L},
    journal = {Письма в ЖЭТФ},
    volume = {32},
    issue = {11},
    pages = {684},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22003.shtml},
}