@article{JETPL.104.792, title = {}, author = {Magarill, L. I. and Entin, M. V.}, journal = {JETP Lett.}, volume = {104}, issue = {11}, pages = {771}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16230065}, note = {[Pisma v ZhETF 104, 792 (2016)]} }