@article{PismaZhETF.61.264,
    title = {Gap anisotropy in high-$T_c$ superconductors produced as a result of s-wave Cooper pairing of electrons on a multiply connected Fermi surface with spontaneous symmetry breaking},
    author = {Pashitskii, E. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {61},
    issue = {4},
    pages = {264},
    year = {1995},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18140.shtml},
}