@article{JETPL.109.84, title = {}, author = {Delev, V. A. and Scaldin, O. A. and , and , and Ekomasov, E. G.}, journal = {JETP Lett.}, volume = {109}, issue = {2}, pages = {87}, year = {2019}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19020036}, note = {[Pisma v ZhETF 109, 84 (2019)]} }