@article{PismaZhETF.21.497,
    title = {Concerning the possibility of verifying SU(3)-symmetry breaking in the reactions $e^+e^-\to 3\pi$ and $e^+e^-\to \pi \gamma$},
    author = {Achasov, N. N. and Kozhevnikov, A. A. and Shestakov, G. N.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {8},
    pages = {497},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22469.shtml},
}