@article{PismaZhETF.41.185,
    title = {Two-level systems in nonstoichiometric f luorite phases},
    author = {Kazanskii, S. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {41},
    issue = {5},
    pages = {185},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21964.shtml},
}