@misc{_Opole,,
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 title={Opole, Opole voivodeship},
 keywords={early Middle Ages -- Poland, early medieval settlement -- Poland, early medieval settlements, early medieval strongholds, early medieval cemeteries, material culture of the early Middle Ages, Opole, Opole voivodeship (Poland)},
}