N. Pinkwart, C. Lynch, K. D. Ashley, and V. Aleven. (Eds.). International Journal of Artificial Intelligence in Education, Special Issue on AIED applications for ill-defined domains, IOS Press, volume 19, 2009.

O. Scheuer, B. M. McLaren, F. Loll, and N. Pinkwart. An Analysis and Feedback Infrastructure for Argumentation Learning Systems. Proceedings of the 14th International Conference on Artificial Intelligence in Education (AIED), IOS Press, issue 200, 2009.

N. Pinkwart, C. Lynch, K. D. Ashley, and V. Aleven. Assessing Argument Diagrams in an Ill-defined Domain. Proceedings of the 14th International Conference on Artificial Intelligence in Education (AIED), IOS Press, issue 200, 2009.

N. Pinkwart and F. Loll. Comparing Three Approaches to Assess the Quality of Student's Solutions. Proceedings of the Workshop on Ontologies and Social Semantic Web for Intelligent Educational Systems at the 14th International Conference on Artificial Intelligence in Education (AIED), 2009.

H. Olivier and N. Pinkwart. Towards Supporting Phases in Collaborative Writing Processes. Proceedings of the 6th International Conference on Cooperative Design, Visualization and Engineering (CDVE), Springer Verlag, issue 5738, 2009.

C. Mumme, N. Pinkwart, and F. Loll. Design and Implementation of a Virtual Salesclerk. Proceedings of the 9th International Conference on Intelligent Virtual Agents (IVA), Springer Verlag, issue 5773, 2009.

F. Loll, N. Pinkwart, O. Scheuer, and B. M. McLaren. An Architecture for Intelligent CSCL Argumentation Systems. Community Event Proceedings of the 8th International Conference on Computer Supported Collaborative Learning (CSCL), International Society of the Learning Sciences, 2009.

F. Loll, N. Pinkwart, O. Scheuer, and B. M. McLaren. Towards a Flexible Intelligent Tutoring System for Argumentation. Proceedings of the 9th IEEE International Conference on Advanced Learning Technologies (ICALT), IEEE Computer Society Press, 2009.

F. Loll and N. Pinkwart. Using Collaborative Filtering Algorithms as eLearning Tools. Proceedings of the 42nd Hawaii International Conference on System Sciences (HICSS), IEEE Computer Society Press, 2009.

F. Loll and N. Pinkwart. CITUC: Automatisierte Lösungsbewertung im E-Learning durch kollaboratives Filtern. Tagungsband 2 der 9. Internationalen Tagung Wirtschaftsinformatik (WI), Österreichische Computer Gesellschaft, 2009.

F. Loll and N. Pinkwart. Collaboration Support in Argumentation Systems for Education via Flexible Architectures. Proceedings of the 9th IEEE International Conference on Advanced Learning Technologies (ICALT), IEEE Computer Society Press, 2009.

N. T. Le, W. Menzel, and N. Pinkwart. Evaluation of a Constraint-Based Homework Assistance System for Logic Programming. Proceedings of the 17th International Conference on Computers in Education (ICCE), Asia-Pacific Society for Computers in Education, 2009.

C. Lynch, K. D. Ashley, N. Pinkwart, and V. Aleven. Toward Assessing Law Students' Argument Diagrams. Proceedings of the 12th International Conference on Artificial Intelligence and Law (ICAIL), ACM Press, 2009.

C. Lynch, K. D. Ashley, N. Pinkwart, and V. Aleven. Argument Diagramming and Diagnostic Reliability. Proceedings of the 22nd International Conference on Legal Knowledge and Information Systems (JURIX), IOS Press, issue 205, 2009.

K. D. Ashley, C. Lynch, N. Pinkwart, and V. Aleven. Toward Modeling and Teaching Legal Case-based Adaptation with Expert Examples. Proceedings of the 8th International Conference on Case Based Reasoning (ICCBR), Springer Verlag, issue 5650, 2009.

F. Loll and N. Pinkwart. Disburdening Tutors in E-Learning Environments via Web 2.0 Techniques. Semantic Web Technologies for e-Learning, IOS Press, 2009.

D. Dicheva, R. Mizoguchi, and N. Pinkwart. Proceedings of the Workshop on Ontologies and Social Semantic Web for Intelligent Educational Systems at the 14th International Conference on Artificial Intelligence in Education (AIED). 2009.

N. Pinkwart and H. Olivier. Cooperative Virtual Worlds - a viable eCollaboration pathway or merely a gaming trend? Electronic Markets, Special Issue on eCollaboration, volume 19, issue 4, 2009.

N. Pinkwart, K. D. Ashley, C. Lynch, and V. Aleven. Evaluating an Intelligent Tutoring System for Making Legal Arguments with Hypotheticals. International Journal of Artificial Intelligence in Education, volume 19, issue 4, 2009.

C. Lynch, K. D. Ashley, N. Pinkwart, and V. Aleven. Concepts, Structures, and Goals: Redefining Ill-Definedness. International Journal of Artificial Intelligence in Education, volume 19, issue 3, 2009.

N. Pinkwart, V. Aleven, K. D. Ashley, and C. Lynch. Adaptive Rückmeldungen im intelligenten Tutorensystem LARGO. e-learning and education, volume 5, 2009.