@misc{Martinus_Polonus_Opaviensis_(c._1422_–_c._1453)_Chronica,
 author={Martinus Polonus Opaviensis (c. 1422 – c. 1453)},
 howpublished={online},
 language={lat},
 type={rękopisy},
 title={Chronica summorum pontificum imperatorumque},
 keywords={Jan VIII (?-882) papież, Papieżyca Joanna (818-858), papiestwo 15w., kroniki, Czechy},
}