@article{PismaZhETF.56.177,
    title = {Frequency dependence of the surface impedance of mixed-state type-II superconductors},
    author = {Berezin, V. A. and Il'ichev, E. V. and Tulin, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {56},
    issue = {3},
    pages = {177},
    year = {1992},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19407.shtml},
}