[[21]]., [[Adresse:Meriangasse 3-6|Meriangasse 3-6]]
Oskar-Helmer-Hof# ea14589b183b0f7bb636a2a1777a8258
WGW RDF resource: http://www.geschichtewiki.wien.gv.at/Special:URIResolver/Oskar-2DHelmer-2DHof-23_ea14589b183b0f7bb636a2a1777a8258