Vienna
- http://en.wikipedia.org/wiki/Vienna
- http://www.wien.info
- http://www.viennaairport.com
- http://www.inyourpocket.com/data/download/vienna.pdf
- http://www.visitingvienna.com/visitorinfo/
- http://news.zdnet.com/2100-9590_22-5549786.html
- http://www.wien.info/fr/sightseeing/green-vienna/vienna-by-ship-and-boat
- http://www.motto.at/mottoamfluss/
- http://www.twincityliner.com/web/en/schedule-a-fares/schedule.html
- http://www.wienrundfahrten.com/circuits-danube.html
- http://www.viennasightseeing.at/fr/tours/tour-panoramique-en-bateau/
- http://www.ddsg-blue-danube.at
- http://goo.gl/maps/a2PnX
- http://goo.gl/maps/cEW38
- http://www.frommers.com/destinations/vienna/S8910.html
- http://www.besteckkistl.at
- http://www.diglas.at
- http://austria-taxi.at
- http://www.taxi40100.at
- https://www.researchgate.net/profile/Rene_Pfeiffer
- http://web.luchs.at