Universitäts- und Landesbibliothek (University and State Library)
Even beyond the online catalogue, the university library offers a lot of services to help with writing term papers and theses.
Online course repositories
Many lecturers create online course repositories to provide pertinent literature, handout, and presentation slides. In order to access these, a username and password are needed and will usually be supplied in the first session of a class. Using the search function, you can also find repositories from previous semesters.
ILIAS is the university's eLearning platform and offers many possibilities to complement courses. Often it is simply used as an online course repository, but beyond that, lecturers can also pose online tests or create discussion boards here.