@article{JETPL.94.259, title = {}, author = {, and , and , and , and Korableva, S. L. and Tagirov, M. S.}, journal = {JETP Lett.}, volume = {94}, issue = {3}, pages = {240}, year = {2011}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29481.shtml}, note = {[Pisma v ZhETF 94, 259 (2011)]} }