@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)]} }