What Makes Groups Learning Effectively in a Videoconference Setting? - Ulrike Cress; Aemilian Hron; Helmut-Felix Friedrich; Karsten Hammer (ICLS, 2006)

Fostering collaborative knowledge construction in a video-based learning setting: effects of a shared workspace and a content-specific graphical representation. - Aemilian Hron; Ulrike Cress; Karsten Hammer; Helmut-Felix Friedrich (Br. J. Educ. Technol., 2007)