@article{JETPL.98.947, title = {}, author = {, and , and , and , and Pudalov, V. M. and , and , }, journal = {JETP Lett.}, volume = {98}, issue = {12}, pages = {843}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X1324017X}, note = {[Pisma v ZhETF 98, 947 (2013)]} }