@article{PismaZhETF.49.683,
    title = {Frequency dispersion of the conductivity of metal-oxide  superconductors},
    author = {Kulik, I. O.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {49},
    issue = {12},
    pages = {683},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17022.shtml},
}