@article{JETPL.108.243, title = {}, author = {, and , and Sluchanko, N. E. and Shitsevalova, N. Yu. and , and , }, journal = {JETP Lett.}, volume = {108}, issue = {4}, pages = {237}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X1816004X}, note = {[Pisma v ZhETF 108, 243 (2018)]} }