@article{JETPL.102.101,
    title = {},
    author = {Dorozhkin, S. I.},
    journal = {JETP Lett.},
    volume = {102},
    issue = {2},
    pages = {91},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15140052},
    note = {[Pisma v ZhETF 102, 101 (2015)]}
}