@article{PismaZhETF.70.776,
    title = {Monopole, half-quantum vortices and nexus in chiral superfluids and superconductors},
    author = {Volovik, G. E.},
    journal = {Письма в ЖЭТФ},
    volume = {70},
    issue = {12},
    pages = {776},
    year = {1999},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_14094.shtml},
}