@article{PismaZhETF.46.433,
    title = {Microwave response of a $YBa_2Cu_3O_{9-x}$, superconducting ceramic},
    author = {Abramov, O. V. and Leviev, G. I. and Pogosov, V. G. and Trunin, M. R.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {46},
    issue = {11},
    pages = {433},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18637.shtml},
}