@article{PismaZhETF.27.599,
    title = {Quark spectroscopy and Cabibbo angle},
    author = {Filippov, A. T.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {27},
    issue = {10},
    pages = {599},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23781.shtml},
}