@article{JETPL.93.579,
    title = {},
    author = {,  and ,  and Maslova, N. S.},
    journal = {JETP Lett.},
    volume = {93},
    issue = {9},
    pages = {521},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29268.shtml},
    note = {[Pisma v ZhETF 93, 579 (2011)]}
}