@article{JETPL.95.699, title = {}, author = {Shandarov, S. M. and , and Burimov, N. I. and , and , and , }, journal = {JETP Lett.}, volume = {95}, issue = {12}, pages = {618}, year = {2012}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29760.shtml}, note = {[Pisma v ZhETF 95, 699 (2012)]} }