@article{JETPL.109.265, title = {}, author = {Zamkova, N. G. and , and , and Ovchinnikov, S. G.}, journal = {JETP Lett.}, volume = {109}, issue = {4}, pages = {276}, year = {2019}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19040131}, note = {[Pisma v ZhETF 109, 265 (2019)]} }