@article{PismaZhETF.57.575,
    title = {Ground state of U= $\propto$ Hubbard model. Exact solution for two holes},
    author = {Kuz'min, E. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {57},
    issue = {9},
    pages = {575},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17841.shtml},
}