Kettler-Verlag, ISBN 3-937390-67-7==References====External links==* The Great Ocean Liners: "Bremen"* The Maritime Network Article on SS "Bremen"* http://www.radiobremen.de/magazin/geschichte/schiffe/bremen/* "New Catapult Drives Plane From Deck of Liner", November 1929, "Popular Mechanics" photo of Heinkel 12 on Bremen catapult* Video dedicated to SS Bremen
In "Weser-Kurier", Bremen 1999* Hermann Haarmann / Ingrid Peckskamp-Lürßen: "Mit der Kamera um die Welt – Richard Fleischhut (1881–1951)".