@misc{ac+low+frequency+conductivity+in+pzt+pfs+ferroelectric+ceramics,
    author = {Osak, Andrzej},
    title = {AC low frequency conductivity in PZT PFS ferroelectric ceramics},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2017},
    number = {Y. 114, vol. 1}
}