@article{PismaZhETF.58.457,
    title = {Superconductivity with lines of gap nodes: density of states in the vortex},
    author = {Volovik, G. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {58},
    issue = {6},
    pages = {457},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_4754.shtml},
}