@article{JETPL.104.264,
    title = {},
    author = {Dolganov, P. V. and Shuravin, N. S. and Dolganov, V. K. and Kats, E. I.},
    journal = {JETP Lett.},
    volume = {104},
    issue = {4},
    pages = {263},
    year = {2016},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16160104},
    note = {[Pisma v ZhETF 104, 264 (2016)]}
}