@article{JETPL.107.265,
    title = {},
    author = {Murtazaev, A. K. and Magomedov, M. A. and Ramazanov, M. K.},
    journal = {JETP Lett.},
    volume = {107},
    issue = {4},
    pages = {259},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18040112},
    note = {[Pisma v ZhETF 107, 265 (2018)]}
}