@article{JETPL.107.193, title = {}, author = {, and Frolov, A. V. and , and , and , and Orlov, A. P. and Pudalov, V. M. and , }, journal = {JETP Lett.}, volume = {107}, issue = {3}, pages = {192}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18030104}, note = {[Pisma v ZhETF 107, 193 (2018)]} }