@article{PismaZhETF.60.609,
    title = {Is there an excees of electron neutrinos in the flux in the atmosphere?},
    author = {Ryazhskaya, O. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {60},
    issue = {9},
    pages = {609},
    year = {1994},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20403.shtml},
}