@article{PismaZhETF.24.543,
    title = {New mechanism of transition of degenerate ferromagnetic semiconductors into the insulator state},
    author = {Nagaev, E. L. and Sokolova, E. B.},
    journal = {Письма в ЖЭТФ},
    volume = {24},
    issue = {10},
    pages = {543},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27769.shtml},
}