@article{JETPL.98.661, title = {}, author = {Glushkov, A. V. and Saburov, A. V.}, journal = {JETP Lett.}, volume = {98}, issue = {10}, pages = {589}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13220025}, note = {[Pisma v ZhETF 98, 661 (2013)]} }