@article{PismaZhETF.75.63,
    title = {Momentum space topology of fermion zero modes on brane},
    author = {Volovik, G. E.},
    journal = {Письма в ЖЭТФ},
    volume = {75},
    issue = {2},
    pages = {63},
    year = {2002},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_9355.shtml},
}