@article{JETPL.109.98, title = {}, author = {, and Men?shov, V. N. and , and , }, journal = {JETP Lett.}, volume = {109}, issue = {2}, pages = {102}, year = {2019}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19020061}, note = {[Pisma v ZhETF 109, 98 (2019)]} }