@article{JETPL.102.837, title = {}, author = {, and , and , and , and Gerashchenko, A. P. and , and , and , and Kozhevnikov, V. L.}, journal = {JETP Lett.}, volume = {102}, issue = {11}, pages = {727}, year = {2015}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X1523006X}, note = {[Pisma v ZhETF 102, 837 (2015)]} }