@article{JETPL.96.320, title = {}, author = {, and Godunov, S. I. and Rozanov, A. N. and Vysotsky, M. I.}, journal = {JETP Lett.}, volume = {96}, issue = {5}, pages = {290}, year = {2012}, doi = {}, url = {http://jetpletters.ru/ps/0/article_29923.shtml}, note = {[Pisma v ZhETF 96, 320 (2012)]} }