@article{JETPL.103.522,
    title = {},
    author = {Ramazanov, M. K. and Murtazaev, A. K.},
    journal = {JETP Lett.},
    volume = {103},
    issue = {7},
    pages = {460},
    year = {2016},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16070079},
    note = {[Pisma v ZhETF 103, 522 (2016)]}
}