- The fall of the 'kings of South Seas'. On the Question of the Breaking Down of the Hamburg Trading House Johann Cesar Godeffroy2007 | Faculty of Mathematics and Physics
- The Collapse of 'South Seas King's'. To the Question of the Break-Down of the Hamburg Trading House Johann Cesar Godeffroy und Sohn in the Year 18792007 | Faculty of Arts
- The fall of the ´kings of South Seas´2007 | Faculty of Mathematics and Physics