Željko Carevic is a research associate at the GESIS department “Knowledge Technologies for the Social Sciences” (WTS). He joined GESIS in 2012 after his graduation in Media Informatics at the University of Applied Sciences in Cologne. Main research interests cover the area of Digital Libraries, Bibliometrics and (Interactive) Information Retrieval. Željko Carevic is a team member of “Portals and Value-added Services” that maintains and further develops “Sowiport” – a scientific digital library for the social sciences.