@article{JETPL.106.545,
    title = {},
    author = {Pushkarev, D. V. and ,  and Uryupina, D. S. and ,  and Panov, N. A. and ,  and Kosareva, O. G. and Savel?ev, A. B.},
    journal = {JETP Lett.},
    volume = {106},
    issue = {9},
    pages = {561},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17210020},
    note = {[Pisma v ZhETF 106, 545 (2017)]}
}