@article{JETPL.104.334, title = {}, author = {, and , and Tayurskii, D. A. and , }, journal = {JETP Lett.}, volume = {104}, issue = {5}, pages = {323}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16170082}, note = {[Pisma v ZhETF 104, 334 (2016)]} }