@article{PismaZhETF.90.856,
    title = {Direct bandgap optical transitions in Si nanocrystals},
    author = {Prokofiev, A. A. and Moskalenko, A. S. and Yassievich, I. N. and de Boer, W. D. A. M. and Timmerman, D. and Zhang, H. and Buma, W. J. and Gregorkiewicz, T.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {90},
    issue = {12},
    pages = {856},
    year = {2009},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_28690.shtml},
}