@article{JETPL.110.799, title = {}, author = {Grigoriev, S. V. and Pshenichnyi, K. A. and , and , and , and , }, journal = {JETP Lett.}, volume = {110}, issue = {12}, pages = {793}, year = {2019}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19240068}, note = {[Pisma v ZhETF 110, 799 (2019)]} }