@article{JETPL.102.417,
    title = {},
    author = {Tkachenko, O. A. and Tkachenko, V. A. and Kvon, Z. D.},
    journal = {JETP Lett.},
    volume = {102},
    issue = {6},
    pages = {378},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15180113},
    note = {[Pisma v ZhETF 102, 417 (2015)]}
}