1. Formatively evaluating redeem — an authoring environment for intelligent tutoring systems;Ainsworth,1999
2. The LISP tutor;Anderson;BYTE,1985
3. Supporting educational software design with knowledge-rich tools;Bell;International Journal of Artificial Intelligence in Education,1999
4. A programming by demonstration authoring tools for model tracing tutors;Blessing;International Journal of Artificial Intelligence in Education,1997
5. Putting intelligent tutoring systems into practice: A study in technology extension and transfer;Bloom;Machine Mediated Learning,1995