@article{PismaZhETF.50.229,
    title = {Mixing of В mesons and dynamic flavor},
    author = {Chkareuli, J. L.},
    journal = {Письма в ЖЭТФ},
    volume = {50},
    issue = {5},
    pages = {229},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17093.shtml},
}