To get a broader picture of the academic literature on a certain topic (including sources that are not available in Kassel), you will have to use academic databases. The University Library of Kassel gives access to more than 6,000 databases. A lot of them are already included in KARLA, but for specific search approaches, it is better to use the database directly. There are a number of important databases that you should consult when searching for academic literature for term papers, theses etc. Often these databases provide full text links to scientific papers. Please note that most databases are only accessible within the University Network or via login when working from home. There is a list of all databases available at Kassel University in the Database Information System (sorted by discipline, in German).