@article{PismaZhETF.42.393,
    title = {Anomalies caused in phonon spectra by charge density fluctuations},
    author = {Katsnel'son, M. I. and Trefilov, A. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {42},
    issue = {10},
    pages = {393},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21868.shtml},
}