@article{PismaZhETF.69.8,
    title = {The $\rho^{\pm}-\rho^0$ mass splitting problem},
    author = {Achasov, M. N. and Achasov, N. N.},
    journal = {Письма в ЖЭТФ},
    volume = {69},
    issue = {1},
    pages = {8},
    year = {1999},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_14103.shtml},
}