@article{PismaZhETF.52.793,
    title = {New possibilities for studying the phonon spectra of crystals with the perovskite structure},
    author = {Makarov, V. I. and Vereshkov, G. M. and Gufan, Yu. M. and Klochko, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {52},
    issue = {3},
    pages = {793},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17462.shtml},
}