@article{JETPL.104.714, title = {}, author = {Filatov, S. V. and , and Levchenko, A. A. and , }, journal = {JETP Lett.}, volume = {104}, issue = {10}, pages = {702}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16220094}, note = {[Pisma v ZhETF 104, 714 (2016)]} }