@article{JETPL.104.90,
    title = {},
    author = {Solovarov, N. K. and Tarasov, V. F. and , },
    journal = {JETP Lett.},
    volume = {104},
    issue = {2},
    pages = {94},
    year = {2016},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16140058},
    note = {[Pisma v ZhETF 104, 90 (2016)]}
}