Materia
- Christian Theology 10
- Latin America 10
- 20th Century 9
- Cultural 9
- 19th Century 8
- Asia 8
- Greece 8
- Africa 7
- Middle East 6
- Economic History 4
- German Language and Literatures 4
- Historiography 4
- Ancient & Classical 3
- Australia & New Zealand 3
- Americas (North, Central, South, West Indies) 2
- Christian Church 2
- Economics 2
- Ethnic Studies 2
- History & Theory 2
- Media and Communication 2