@article{PismaZhETF.5.454, title = {Concerning One Possibility of Observing Branch Points Connected with p and p' Poles}, author = {Levintov, I. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {5}, issue = {12}, pages = {454}, year = {1967}, doi = {}, url = {http://jetpletters.ru/ps/0/article_25231.shtml}, }