@article{PismaZhETF.93.575,
    title = {The calculation of the Fermi surface with complex topology from norm-conserving cluster perturbation theory for doping dependent electronic structure of the Hubbard model},
    author = {Ovchinnikov, S. G. and Nikolaev, S. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {93},
    issue = {9},
    pages = {575},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29267.shtml},
}