@article{JETPL.102.393, title = {}, author = {, and , and , and , and , and , and , and Volochaev, M. N. and Velikanov, D. A.}, journal = {JETP Lett.}, volume = {102}, issue = {6}, pages = {355}, year = {2015}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15180071}, note = {[Pisma v ZhETF 102, 393 (2015)]} }