[[4]]., [[Adresse:Operngasse 28|Operngasse 28]]
Operngasse 28# 4a3aff8de38f457a859b0085a86c4b59
WGW RDF resource: http://www.geschichtewiki.wien.gv.at/Special:URIResolver/Operngasse_28-23_4a3aff8de38f457a859b0085a86c4b59