@article{JETPL.98.651,
    title = {},
    author = {,  and ,  and ,  and Kuznetsov, A. V. and ,  and Shitsevalova, N. Yu. and Filippov, V. B.},
    journal = {JETP Lett.},
    volume = {98},
    issue = {9},
    pages = {581},
    year = {2013},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13210133},
    note = {[Pisma v ZhETF 98, 651 (2013)]}
}