@article{JETPL.96.281, title = {}, author = {Sazonov, S. V.}, journal = {JETP Lett.}, volume = {96}, issue = {4}, pages = {263}, year = {2012}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29903.shtml}, note = {[Pisma v ZhETF 96, 281 (2012)]} }