@article{PismaZhETF.57.394,
    title = {Quantum size effect and pronounced optical nonlinearities in porous silicon},
    author = {Dneprovskii, V. S. and Karavanskii, V. A. and Klimov, V. I. and Maslov, A. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {57},
    issue = {7},
    pages = {394},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17802.shtml},
}