F. Loll, N. Pinkwart, O. Scheuer, and B. M. McLaren. Developing Collaborative Argumentation Systems: What Advice Do the Experts Have? Connecting Computer-Supported Collaborative Learning to Policy and Practice: Proceedings of the 9th Conference on Computer Supported Collaborative Learning (CSCL), Volume II - Short Papers \& Posters, International Society of the Learning Sciences (ISLS), 2011.