@article{JETPL.100.118, title = {}, author = {Kats, E. I. and , }, journal = {JETP Lett.}, volume = {100}, issue = {2}, pages = {110}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14140082}, note = {[Pisma v ZhETF 100, 118 (2014)]} }