@article{JETPL.104.865, title = {}, author = {Kozlov, D. A. and Savchenko, M. L. and , and Kvon, Z. D. and Mikhailov, N. N. and Dvoretsky, S. A. and , }, journal = {JETP Lett.}, volume = {104}, issue = {12}, pages = {859}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16240085}, note = {[Pisma v ZhETF 104, 865 (2016)]} }