@article{JETPL.105.10, title = {}, author = {Kazanov, D. R. and , and Shubina, T. V.}, journal = {JETP Lett.}, volume = {105}, issue = {1}, pages = {8}, year = {2017}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17010027}, note = {[Pisma v ZhETF 105, 10 (2017)]} }