@article{PismaZhETF.89.84,
    title = {Quasi-direct optical transitions in Ge nanocrystals embedded in GeO$_2$ matrix},
    author = {Volodin, V. A. and Gorokhov, E. B. and Marin, D. V. and Rinnert, H. and Miska, P. and Vergnat, M.},
    journal = {Письма в ЖЭТФ},
    volume = {89},
    issue = {2},
    pages = {84},
    year = {2009},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_28399.shtml},
}