@article{PismaZhETF.90.250,
    title = {On the Pion Distribution Amplitude Shape},
    author = {Polyakov, M. V.},
    journal = {Письма в ЖЭТФ},
    volume = {90},
    issue = {4},
    pages = {250},
    year = {2009},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_28579.shtml},
}