@article{JETPL.98.353, title = {}, author = {, and , and Bebenin, N. G. and , and Naumov, S. V. and , and , }, journal = {JETP Lett.}, volume = {98}, issue = {6}, pages = {313}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X1318001X}, note = {[Pisma v ZhETF 98, 353 (2013)]} }