@article{PismaZhETF.11.462, title = {Diagonal and Nondiagonal Electromagnetic Interactions in Colliding-beam Experiments}, author = {Lipmanov, E. M.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {11}, issue = {9}, pages = {462}, year = {1970}, doi = {}, url = {http://jetpletters.ru/ps/0/article_26167.shtml}, }