@article{JETPL.104.196, title = {}, author = {, and Pyatakov, A. P. and Nikolaeva, E. P. and Sergeev, A. S. and , and , and Nikolaev, A. V. and Zvezdin, A. K.}, journal = {JETP Lett.}, volume = {104}, issue = {3}, pages = {197}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X1615011X}, note = {[Pisma v ZhETF 104, 196 (2016)]} }