@article{JETPL.101.265,
    title = {},
    author = {,  and Gavrilkin, S. Yu. and Gorshunov, B. P. and ,  and Zhukova, E. S. and ,  and ,  and ,  and ,  and ,  and Tsvetkov, A. Yu.},
    journal = {JETP Lett.},
    volume = {101},
    issue = {4},
    pages = {247},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15040074},
    note = {[Pisma v ZhETF 101, 265 (2015)]}
}