@article{JETPL.94.890, title = {}, author = {Aleshkin, V. Ya. and , and , and , and , and , and , and , }, journal = {JETP Lett.}, volume = {94}, issue = {11}, pages = {811}, year = {2011}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29596.shtml}, note = {[Pisma v ZhETF 94, 890 (2011)]} }