@article{PismaZhETF.41.18,
    title = {Concentration phase transition in the Hubbard model},
    author = {Vedyaev, A. V. and Nikolaev, M. Yu.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {41},
    issue = {1},
    pages = {18},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21903.shtml},
}