@article{JETPL.100.760, title = {}, author = {Prudnikov, V. V. and , and , }, journal = {JETP Lett.}, volume = {100}, issue = {10}, pages = {675}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14220159}, note = {[Pisma v ZhETF 100, 760 (2014)]} }