Perhaps you should try some spelling variations:
historischen kollegs » historischen rolle, historischer kollaps, historischen kontext
zur historischen » der historischen
schriften zur » vorschriften zur, schriften des

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: schriften zur historischen kollegs : (kolloquien OR kolloquium).
• Adding a wildcard symbol may retrieve word variants: schriften zur historischen kollegs : (kolloquien or kolloquium)*.