@article{PismaZhETF.16.492,
    title = {Hadronic Symmetries and Gauge Theories of Weak and Electromagnetic Interaction},
    author = {Nikolaev, N. N.},
    journal = {Письма в ЖЭТФ},
    volume = {16},
    issue = {8},
    pages = {492},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26899.shtml},
}