@article{PismaZhETF.36.295,
    title = {Instability of the dielectric constant of $Cd_2Nb_20_7$},
    author = {Smolenskii, G. A. and Kolpakova, N. N. and Kizhaev, S. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {36},
    issue = {8},
    pages = {295},
    year = {1982},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20178.shtml},
}