@article{JETPL.106.445, title = {}, author = {Sadovnikov, A. V. and , and , and , and , and , and , and , and Nikitov, S. A.}, journal = {JETP Lett.}, volume = {106}, issue = {7}, pages = {465}, year = {2017}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17190092}, note = {[Pisma v ZhETF 106, 445 (2017)]} }