Changes of the welfare state in the US and in Germany: Theoretical Framework of the notion citizenship in both countries and an investigation of the reactions of the press, the population and political parties Daniela Keller E-Book (epub) 16.04.2005

Robert Stalnaker: Common Ground, 2002: A presentation of his paper and an investigation how its theories can be applied to questions. Daniela Keller E-Book (pdf) 16.04.2005

Changes in the European Institutions in regard to the Eastern Enlargement: The distribution of power between member states of different population sizes Daniela Keller E-Book (pdf) 17.04.2005