@article{PismaZhETF.60.235,
    title = {Resonant generation of high harmonics},
    author = {Oleinikov, P. A. and Platonenko, V. T. and Ferrante, F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {60},
    issue = {4},
    pages = {235},
    year = {1994},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20332.shtml},
}