@article{PismaZhETF.54.197,
    title = {Decays of heavy quarkonia which violate the OZI rule},
    author = {Achasov, N. N. and Kozhevnikov, A. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {54},
    issue = {4},
    pages = {197},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18118.shtml},
}