@article{PismaZhETF.59.798,
    title = {The Fermi condensate near the saddle point and in the vortex core},
    author = {Volovik, G. E.},
    journal = {Письма в ЖЭТФ},
    volume = {59},
    issue = {11},
    pages = {798},
    year = {1994},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19927.shtml},
}