@article{JETPL.105.219, title = {}, author = {Larionov, A. V. and , and Kulik, L. V.}, journal = {JETP Lett.}, volume = {105}, issue = {4}, pages = {238}, year = {2017}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17040063}, note = {[Pisma v ZhETF 105, 219 (2017)]} }