Pocket Battleships of the Deutschland Class: Warships of the KriegsmarineGerhard Koop
Gerhard Koop
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Bækur eftir Gerhard Koop
- German Destroyers of World War II: Warships of the KriegsmarineGerhard Koop
- Battleships of the Scharnhorst Class: The Scharnhorst and Gneisenau: The Backbone of the German Surface Forces at the Outbreak of WarGerhard Koop
- German Light Cruisers of World War II: Warships of the KriegsmarineGerhard Koop
- Heavy Cruisers of the Admiral Hipper Class: Warships of the KriegsmarineGerhard Koop
- Battleships of the Bismarck Class: Bismarck and Tirpitz: Culmination and Finale of German Battleship ConstructionGerhard Koop
