@article{PismaZhETF.32.56,
    title = {Is there evidence for the four-quark nature of the S meson?},
    author = {Achasov, N. N. and Devyanin, S. A. and Schestakov, G. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {1},
    pages = {56},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21631.shtml},
}