@article{JETPL.107.378, title = {}, author = {, and , and Skorokhodov, E. V. and Gusev, N. S. and Drozdov, M. N.}, journal = {JETP Lett.}, volume = {107}, issue = {6}, pages = {364}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18060073}, note = {[Pisma v ZhETF 107, 378 (2018)]} }