Luc Paquette, Jean-François Lebeau, André Mayers. Authoring Problem-Solving Tutors: A Comparison between ASTUS and CTAT. In Roger Nkambou, Jacqueline Bourdeau, Riichiro Mizoguchi, editors, Advances in Intelligent Tutoring Systems. Volume 308 of pages 377-405, 2010. [doi]
Abstract is missing.