@article{PismaZhETF.47.628,
    title = {Superconductivity as a consequence of an anomalous nonlinear polarizability of electrons with an extremum surface in the dispersion law},
    author = {Kopaev, Yu. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {12},
    pages = {628},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16611.shtml},
}