@article{JETPL.103.372, title = {}, author = {, and Magarill, L. I. and , }, journal = {JETP Lett.}, volume = {103}, issue = {5}, pages = {328}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16050088}, note = {[Pisma v ZhETF 103, 372 (2016)]} }