- Venerabiles dominae. Abbesses of the monasteries of Cistercian nuns of Upper Lusatia (Sankt Marienthal and Sankt Marienstern) in time of crisis and renewal2009 | Faculty of Arts
- Crisis and Renewal: Irish-Language Poetry in the Twentieth and Twenty-First Centuries2021 | Faculty of Arts
- The way out of crisis. (The renewal of the reign of European methods. The return of Germany to the European commonwealth)1997 | Faculty of Mathematics and Physics