@article{JETPL.104.413, title = {}, author = {, and , and Streltsov, S. V. and Anisimov, V. I.}, journal = {JETP Lett.}, volume = {104}, issue = {6}, pages = {398}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16180077}, note = {[Pisma v ZhETF 104, 413 (2016)]} }