@article{JETPL.100.111, title = {}, author = {, and Shchepetilnikov, A. V. and , and , and Kukushkin, I. V.}, journal = {JETP Lett.}, volume = {100}, issue = {2}, pages = {102}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14140070}, note = {[Pisma v ZhETF 100, 111 (2014)]} }