An Interactive Maze Scenario with Physical Robots and Other Smart Devices. - Marc Jansen; Maria Oelinger; Kay Hoeksema; Heinz Ulrich Hoppe (WMTE, 2004)

Building bridges within learning communities through ontologies and "thematic objects". - Ulrich Hoppe; Niels Pinkwart; Maria Oelinger; Sam Zeini; Felisa Verdejo; Beatriz Barros; José Ignacio Mayorga (CSCL, 2005)