@article{JETPL.96.519, title = {}, author = {, and Alekseev, P. S. and , and , and Smirnov, D. and , and , and , and , }, journal = {JETP Lett.}, volume = {96}, issue = {7}, pages = {471}, year = {2012}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29978.shtml}, note = {[Pisma v ZhETF 96, 519 (2012)]} }