@misc{Wieland_Johann_Wolfgang_(?-1736)_Principatvs_1736,
 author={Wieland, Johann Wolfgang (?-1736) and Schubarth, Mattheus von (1723–1758) and Homännische Erben},
 copyright={Public Domain},
 address={Norimb[ergae]},
 howpublished={online},
 year={1736},
 publisher={ab Heredibus Homannianis, Cum Spec. S. Caes. Rg. Mtis. Privilegio},
 language={lat},
 title={Principatvs Silesiae Oppaviensis novissima Tabula geographica},
 title={Principatus Silesiae Oppaviensis novissima tabula geographica},
 keywords={Opava region, topographical maps, 18th century},
}