@article{PismaZhETF.20.753,
    title = {Concerning one analytic property of the amplitudes of reactions in which three particles are produced in the final state},
    author = {Baz', A. I. and Merkur'ev, S. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {11},
    pages = {753},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27403.shtml},
}