Hoffmann, S., & Kollmeier, K. (2012). 'Geschichtliche Grundbegriffe' Reloaded?: Writing the conceptual history of the Twentieth Century : introduction / Stefan-Ludwig Hoffmann. Kathrin Kollmeier. Contributions to the history of concepts.

Hoffmann, Stefan-Ludwig, und Kathrin Kollmeier. "'Geschichtliche Grundbegriffe' Reloaded?: Writing the Conceptual History of the Twentieth Century : Introduction / Stefan-Ludwig Hoffmann. Kathrin Kollmeier." Contributions to the History of Concepts 2012.

Hoffmann, Stefan-Ludwig, und Kathrin Kollmeier. "'Geschichtliche Grundbegriffe' Reloaded?: Writing the Conceptual History of the Twentieth Century : Introduction / Stefan-Ludwig Hoffmann. Kathrin Kollmeier." Contributions to the History of Concepts, 2012.