@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 = {πΙΣΨΝΑ Χ φότζ}, volume = {40}, issue = {7}, pages = {275}, year = {1984}, doi = {}, url = {http://jetpletters.ru/ps/0/article_19021.shtml}, }