@article{JETPL.101.131, title = {}, author = {, and , and Pudalov, V. M. and , }, journal = {JETP Lett.}, volume = {101}, issue = {2}, pages = {125}, year = {2015}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15020113}, note = {[Pisma v ZhETF 101, 131 (2015)]} }