@article{JETPL.104.604, title = {}, author = {Dudnikov, V. A. and Orlov, Yu. S. and Kazak, N. V. and , and Ovchinnikov, S. G.}, journal = {JETP Lett.}, volume = {104}, issue = {8}, pages = {588}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16200121}, note = {[Pisma v ZhETF 104, 604 (2016)]} }