Vienna in figures / City of Vienna, MA 23 - Economic Affairs, Labour, Statistics. Vienna : Vienna City Administration, Municipal Department 23 - Economic Affairs, Labour and Statistics, August 2018- : (2020). Wienbibliothek im Rathaus. https://resolver.obvsg.at/urn:nbn:at:AT-WBR-145210 / Urheberrechtsschutz (InC 1.0)