@article{PismaZhETF.48.281,
    title = {Bound states of electrons (holes) on a square lattice and their superfluidity},
    author = {Uimin, G. V. and Maksimov, L. A. and Barabanov, A. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {48},
    issue = {5},
    pages = {281},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16715.shtml},
}