@article{PismaZhETF.7.433,
    title = {Oscillations of Ultrasound Damping in a Semiconductor in a High-frequency Electric Field},
    author = {Epshtein, E. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {7},
    issue = {11},
    pages = {433},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25812.shtml},
}