@article{PismaZhETF.5.344,
    title = {Formation of Resonances in $\pi^+p$ Collisipns and Regge Poles},
    author = {Kaidalov, A. B. and Karnakov, B. M.},
    journal = {Письма в ЖЭТФ},
    volume = {5},
    issue = {9},
    pages = {344},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25191.shtml},
}