@article{JETPL.103.214, title = {}, author = {, and Dudnikov, V. A. and Orlov, Yu. S. and Kazak, N. V. and Solovyov, L. A. and , and , and , and , and , and Ovchinnikov, S. G.}, journal = {JETP Lett.}, volume = {103}, issue = {3}, pages = {196}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16030115}, note = {[Pisma v ZhETF 103, 214 (2016)]} }