@article{JETPL.98.533, title = {}, author = {, and , and , and , and , and , and Sadakov, A. V. and , and , and , and Vedeneev, S. I.}, journal = {JETP Lett.}, volume = {98}, issue = {8}, pages = {475}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13200083}, note = {[Pisma v ZhETF 98, 533 (2013)]} }