@article{JETPL.103.617, title = {}, author = {Danilov, P. A. and Zayarny, D. A. and , and Kudryashov, S. I. and , and , and Saraeva, I. N. and Kuchmizhak, A. A. and , and , }, journal = {JETP Lett.}, volume = {103}, issue = {8}, pages = {549}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16080117}, note = {[Pisma v ZhETF 103, 617 (2016)]} }