@article{PismaZhETF.18.460,
    title = {Colliding poles and growing cross sections},
    author = {Zotov, N. P. and Starkov, N. I. and Tsarev, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {18},
    issue = {7},
    pages = {460},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24020.shtml},
}