@article{JETPL.102.18,
    title = {},
    author = {Il?ichov, L. V. and Chapovsky, P. L.},
    journal = {JETP Lett.},
    volume = {102},
    issue = {1},
    pages = {14},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15130044},
    note = {[Pisma v ZhETF 102, 18 (2015)]}
}