@article{JETPL.106.702, title = {}, author = {, and , and , and , and Starchikov, S. S. and Lyubutin, I. S. and , and , and , }, journal = {JETP Lett.}, volume = {106}, issue = {11}, pages = {733}, year = {2017}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17230084}, note = {[Pisma v ZhETF 106, 702 (2017)]} }