@article{PismaZhETF.4.282,
    title = {Consequences of Crossing Symmetry for $\pi$ N-scattering S Waves},
    author = {Meshcheryakov, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {4},
    issue = {8},
    pages = {282},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25007.shtml},
}