@article{PismaZhETF.12.532,
    title = {Possibility of Direct Amplification and Generation of Electric in Waves in Semiconductors},
    author = {Pustovoit, V. I. and Mukhortov, Yu. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {11},
    pages = {532},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26379.shtml},
}