@article{JETPL.99.813, title = {}, author = {Alisultanov, Z. Z.}, journal = {JETP Lett.}, volume = {99}, issue = {12}, pages = {702}, year = {2014}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X14120066}, note = {[Pisma v ZhETF 99, 813 (2014)]} }