@article{JETPL.95.148,
    title = {},
    author = {Chapovsky, P. L.},
    journal = {JETP Lett.},
    volume = {95},
    issue = {3},
    pages = {},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29633.shtml},
    note = {[Pisma v ZhETF 95, 148 (2012)]}
}