@article{JETPL.105.685,
    title = {},
    author = {Sadykov, A. F. and Piskunov, Yu. V. and Gerashchenko, A. P. and Ogloblichev, V. V. and Smol?nikov, A. G. and ,  and ,  and Bush, A. A.},
    journal = {JETP Lett.},
    volume = {105},
    issue = {11},
    pages = {715},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17110066},
    note = {[Pisma v ZhETF 105, 685 (2017)]}
}