@article{PismaZhETF.10.309,
    title = {Motion of Electron-hole Drops in Germanium.},
    author = {Bagaev, V. S. and Galkina, T. I. and Gogolin, O. V. and Keldysh, L. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {10},
    issue = {7},
    pages = {309},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25732.shtml},
}