@article{PismaZhETF.17.167,
    title = {Low-energy Theorem  for the  $\gamma$ $\gamma$ ϊ$\pi$ Vertex  and  the  $e^+e^- \to \pi^0\gamma$ Process},
    author = {Malakyan, Yu. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {17},
    issue = {3},
    pages = {167},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23504.shtml},
}