Contract-net-based learning in a user-adaptive interface agency
In: Distributed Artificial Intelligence Meets Machine Learning - Learning in Multi-Agent Environments, Jg. 1221, S. 202-2221997Order and equivalence of rational numbers: a cognitive analysis
In: Journal for research in mathematics education, Jg. 16 H. 1, S. 18-361985Order and equivalence of rational numbers: a clinical teaching experiment
In: Journal for research in mathematics education, Jg. 15 H. 5, S. 323-3411984Selected results from the rational number project
In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Jg. vol. 1: Individual contributions, S. 342-3511985Sharpening one's diagnostic skill by simulating students' error behaviors
In: Focus on learning problems in mathematics, Jg. 9 H. 2, S. 43-561987