@article{PismaZhETF.54.401,
    title = {Existence of an effective magnetic field in disordered many-valley semiconductors},
    author = {Polyakov, D. G.},
    journal = {Письма в ЖЭТФ},
    volume = {54},
    issue = {7},
    pages = {401},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18914.shtml},
}