Genre
- Periodicals 43 Treffer
- Congresses 42 Treffer
- Cases 12 Treffer
- Treaties 10 Treffer
- Case studies 6 Treffer
- Handbooks, manuals, etc 3 Treffer
- Platforms 3 Treffer
- Cross-cultural studies 2 Treffer
- Databases 2 Treffer
- Indexes 2 Treffer
- Statistics 2 Treffer
- Comparative studies 1 Treffer
- Dictionaries 1 Treffer
- Juvenile literature 1 Treffer
- Miscellanea 1 Treffer
- Pictorial works 1 Treffer
- Popular works 1 Treffer
- Problems, exercises, etc 1 Treffer
- Rules and practices 1 Treffer
- Tables 1 Treffer