@article{JETPL.95.198,
    title = {},
    author = {Golub?, A. P. and ,  and ,  and ,  and ,  and Kopnin, S. I. and Popel, S. I.},
    journal = {JETP Lett.},
    volume = {95},
    issue = {4},
    pages = {},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29642.shtml},
    note = {[Pisma v ZhETF 95, 198 (2012)]}
}