@article{PismaZhETF.87.487,
    title = {Electronic structure of negatively curved graphene},
    author = {Kolesnikov, D. V. and Osipov, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {87},
    issue = {8},
    pages = {487},
    year = {2008},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_28051.shtml},
}