@article{PismaZhETF.21.582,
    title = {Absorption of ultrasound by electron-hole drops in a semiconductor},
    author = {Keldysh, L. V. and Tikhodeev, S. G.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {10},
    pages = {582},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22493.shtml},
}