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