@article{JETPL.100.94, title = {}, author = {, and Vitukhnovsky, A. G. and Lebedev, V. S. and , and , and , }, journal = {JETP Lett.}, volume = {100}, issue = {2}, pages = {86}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14140045}, note = {[Pisma v ZhETF 100, 94 (2014)]} }