@article{PismaZhETF.65.119,
    title = {Radiative tail in $\pi_{e2}$ decay and some comments on $\mu$ - euniversality},
    author = {Kuraev, E. A.},
    journal = {Письма в ЖЭТФ},
    volume = {65},
    issue = {2},
    pages = {119},
    year = {1997},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_15063.shtml},
}