@article{JETPL.93.588, title = {}, author = {, and Kolesnikov, S. V. and , and Saletsky, A. M.}, journal = {JETP Lett.}, volume = {93}, issue = {9}, pages = {530}, year = {2011}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29270.shtml}, note = {[Pisma v ZhETF 93, 588 (2011)]} }