@article{JETPL.110.260, title = {}, author = {Zhuravlev, A. S. and Kuznetsov, V. A. and Gorbunov, A. V. and Kulik, L. V. and Timofeev, V. B. and Kukushkin, I. V.}, journal = {JETP Lett.}, volume = {110}, issue = {4}, pages = {284}, year = {2019}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19160094}, note = {[Pisma v ZhETF 110, 260 (2019)]} }