@article{PismaZhETF.13.387,
    title = {Dual Amplitude for Processes with Participatiom of Photons},
    author = {Kobushkin, A. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {13},
    issue = {7},
    pages = {387},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24277.shtml},
}