@article{PismaZhETF.9.142,
    title = {Calculation of the Parameters of Low-energy $\pi$ N Scattering},
    author = {Radutskii, G. M. and Tabachenko, A. N.},
    journal = {Письма в ЖЭТФ},
    volume = {9},
    issue = {2},
    pages = {142},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25294.shtml},
}