@article{PismaZhETF.21.306,
    title = {Generalized Weinberg sum rule and estimate of the decay  widths of new neutral vector mesons into lepton-antilepton pairs},
    author = {Gerasimov, S. B. and Govorkov, A. B.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {5},
    pages = {306},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22313.shtml},
}