[[21]]., [[Adresse:O'Brien-Gasse 26-30|O'Brien-Gasse 26-30]]
Wohnhausanlage O'Brien-Gasse# d9189babf8640507b05c7db840923657
WGW RDF resource: http://www.geschichtewiki.wien.gv.at/Special:URIResolver/Wohnhausanlage_O-27Brien-2DGasse-23_d9189babf8640507b05c7db840923657