@article{JETPL.97.180, title = {}, author = {Yakimov, A. I. and Kirienko, V. V. and , and , }, journal = {JETP Lett.}, volume = {97}, issue = {3}, pages = {159}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13030090}, note = {[Pisma v ZhETF 97, 180 (2013)]} }