@article{JETPL.117.314, title = {}, author = {Bunkov, Yu. M. and Vetoshko, P. M. and Safin, T. R. and Tagirov, M. S.}, journal = {JETP Lett.}, volume = {117}, issue = {4}, pages = {313}, year = {2023}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.31857/S1234567823040110}, note = {[Pisma v ZhETF 117, 314 (2023)]} }