@article{PismaZhETF.32.529,
    title = {Amplification of two-dimensional plasma waves in super-lattices},
    author = {Chaplik, A. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {8},
    pages = {529},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21788.shtml},
}