@article{PismaZhETF.12.32,
    title = {Factorization of an N-Point Dual Amplitude},
    author = {Verbetskii, Yu. G. and Gedalin, E. V.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {1},
    pages = {32},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26220.shtml},
}