@article{PismaZhETF.27.60,
    title = {Gluon condensate and leptonic decays of vector mesons},
    author = {Vainshtein, A. I. and Zakharov, V. I. and Shifman, M. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {27},
    issue = {1},
    pages = {60},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23637.shtml},
}