J. Slotta, S. Schanze, and N. Pinkwart. (Eds.). Research and Practice in Technology Enhanced Learning, Special Issue on International Perspectives on Inquiry and Technology, World Scientific Publishing, volume 5, issue 3, 2010. F. Loll, C. Mumme, and N. Pinkwart. Flattr this! Explorative Evaluation von Social (Micro-)Payments als alternatives Bezahlmodell. Clausthal University of Technology, Department of Informatics, IFI Technical Report Series, volume 10, issue 10, 2010. J. Slotta, S. Schanze, and N. Pinkwart. Guest Editor's Introduction for Special Issue on International Perspectives on Inquiry and Technology. Research and Practice in Technology Enhanced Learning, volume 5, issue 3, pages 155-160, 2010. C. Mumme and N. Pinkwart. Evaluation of an Autonomous DVD Sales Agent. Poster Proceedings of the 10th International Conference on Intelligent Virtual Agents (IVA), 2010. F. Loll, O. Scheuer, B. M. McLaren, and N. Pinkwart. Learning to Argue Using Computers - A View from Teachers, Researchers, and System Developers. Proceedings of the 10th International Conference on Intelligent Tutoring Systems (ITS), Springer Verlag, issue 6095, 2010. F. Loll, O. Scheuer, B. M. McLaren, and N. Pinkwart. Computer-Supported Argumentation Learning: A Survey of Teachers, Researchers, and System Developers. Proceedings of the 5th European Conference on Technology Enhanced Learning (ECTEL), Springer Verlag, issue 6383, 2010. F. Loll, N. Pinkwart, O. Scheuer, and B. M. McLaren. Ein generisches Framework zur Erstellung von argumentationsunterstützenden Systemen. Tagungsband der Multikonferenz Wirtschaftsinformatik (MKWI), 2010. N. T. Le and N. Pinkwart. Analysis of Learning Curves for Weighted Constraint-Based Tutoring Systems. Proceedings of the IADIS International Conference on Cognition and Exploratory Learning in Digital Age (CELDA), International Association for Development of the Information Society, 2010. N. T. Le, W. Menzel, and N. Pinkwart. Considering Ill-Definedness Of Problem Tasks Under The Aspect Of Solution Space. Proceedings of the 23st International Conference of the Florida Artificial Intelligence Research Society (FLAIRS), AAAI, 2010. K. D. Ashley, C. Lynch, N. Pinkwart, and V. Aleven. Boderline Cases of Ill-definedness - and How Different Definitions Deal with Them. Proceedings of the Workshop on Intelligent Tutoring Systems for Ill-Defined Domains at the 10th International Conference on Intelligent Tutoring Systems (ITS), 2010. C. Lynch, K. Ashley, A. Mitrovic, V. Dimitrova, N. Pinkwart, and V. Aleven. Proceedings of the Workshop on Intelligent Tutoring Systems for Ill-Defined Domains at the 10th International Conference on Intelligent Tutoring Systems (ITS). 2010. D. Tsovaltzi, N. Rummel, B. M. McLaren, N. Pinkwart, O. Scheuer, A. Harrer, and I. Braun. Extending a Virtual Chemistry Laboratory with a Collaboration Script to Promote Conceptual Learning. International Journal on Technology Enhanced Learning, volume 2, issue 12, 2010. O. Scheuer, F. Loll, N. Pinkwart, and B. M. McLaren. Computer-Supported Argumentation: A Review of the State-of-the-Art. International Journal of Computer-Supported Collaborative Learning, volume 5, issue 1, 2010. N. Pinkwart, A. Harrer, and M. Kuhn. Process Support for Collaborative Inquiry Learning. Research and Practice in Technology Enhanced Learning, volume 5, issue 3, 2010. M. P. Gonzalez, C. I. Chesnevar, N. Pinkwart, and M. J. G. Lucero. Developing Argument Assistant Systems from a Usability Viewpoint. Proceedings of the 10th International Conference on Knowledge Management and Information Sharing (KMIS), SciTePress, 2010.