@article{PismaZhETF.40.275,
    title = {Valley degeneracy of two-dimensional electrons on the (111) surface of silicon},
    author = {Gusev, G. M. and Zavaritskii, N. V. and Kvon, Z. D. and Yurgens, A. A.},
    journal = {Письма в ЖЭТФ},
    volume = {40},
    issue = {7},
    pages = {275},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19021.shtml},
}