@article{PismaZhETF.12.194,
    title = {Chiral Dynamics of $A_1 - \rho - \pi$ System},
    author = {Zubnik, B. M. and Ogievetskii, V. I.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {4},
    pages = {194},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26275.shtml},
}