Library Catalogue
With the library catalogue you can research the entire collection of all CBS libraries online (Cologne, Mainz, Potsdam, Brühl, Neuss and Aachen). There is an interlibrary loan service between CBS libraries of Cologne, Mainz, Brühl, Neuss and Aachen.
When browsing through the catalogue, it is visible if media is available or borrowed. With your own library account, you can pre-order media directly from the catalogue online and extent loan periods by yourself. Login details for your library account are your library user number (printed on your Student ID as Library Account) and when logging in for the first time your date of birth (DDMMYYYY). After the login you will be asked to personalize your password.
Under the tab Documents you can find a guide of how to use your library account. You can always contact the library staff in case you have any questions.
In case you do not find what you are looking for at CBS Libraries:
Karlsruher Virtueller Katalog (KVK)
The Karlsruher Virtueller Katalog (KVK) is a catalogue that searches for media worldwide in several catalogues at the same time for you. Furthermore, you can set the search criteria in the way that you can see which library in North Rhine-Westphalia has the medium. In order to do that, you simply have to activate the tab HBZ. This way, you will be presented with a result list that shows the location of the medium in North Rhine-Westphalia.