@article{JETPL.97.485, title = {}, author = {, and , and , and , and , and Pudalov, V. M.}, journal = {JETP Lett.}, volume = {97}, issue = {7}, pages = {419}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13070096}, note = {[Pisma v ZhETF 97, 485 (2013)]} }