@article{JETPL.94.774,
    title = {},
    author = {Dyugaev, A. M. and Grigoriev, P. D. and , },
    journal = {JETP Lett.},
    volume = {94},
    issue = {9},
    pages = {714},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29577.shtml},
    note = {[Pisma v ZhETF 94, 774 (2011)]}
}