Atzmueller, Martin, Behrenbruch, Kay, Hoffmann, Axel, Kibanov, Mark, Macek, Bjoern-Elmar, Scholz, Christoph, Skistims, Hendrik, Söllner, Matthias and Stumme, Gerd. "Connect-U: A System for Enhancing Social Networking." In Socio-technical Design of Ubiquitous Computing Systems , edited by Klaus David, Kurt Geihs, Jan Marco Leimeister, Alexander Roßnagel, Ludger Schmidt, Gerd Stumme and Arno Wacker , 261-275. : Springer International Publishing, 2014.