@article{JETPL.100.390, title = {}, author = {, and Agladze, K. I.}, journal = {JETP Lett.}, volume = {100}, issue = {5}, pages = {351}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14170123}, note = {[Pisma v ZhETF 100, 390 (2014)]} }