@article{JETPL.102.56, title = {}, author = {, and Murtazaev, A. K.}, journal = {JETP Lett.}, volume = {102}, issue = {1}, pages = {51}, year = {2015}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15130111}, note = {[Pisma v ZhETF 102, 56 (2015)]} }