@article{JETPL.97.522, title = {}, author = {Andrianov, E. S. and Pukhov, A. A. and Vinogradov, A. P. and , and , }, journal = {JETP Lett.}, volume = {97}, issue = {8}, pages = {452}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13080043}, note = {[Pisma v ZhETF 97, 522 (2013)]} }