Ship VIKING MISSISSIPPI (Passenger) Registered in USA - Vessel details, Current position and Voyage information - MMSI 368261120, Call Sign WDN2333 | AIS Marine Traffic
File:Viking Modi (ship, 2015) 004.JPG - Wikipedia
A review of the Viking River Cruise from Basel to Amsterdam – Christine M. Grote
File:MS Viking Neptune.jpg - Wikimedia Commons
Highlights from Passau, Germany, with Viking River Cruises