@article{PismaZhETF.40.351,
    title = {Anisotropy of the upper critical field in exotic superconductors},
    author = {Gor'kov, L. P.},
    journal = {Письма в ЖЭТФ},
    volume = {40},
    issue = {8},
    pages = {351},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19049.shtml},
}