Reihe Lecture Notes in Artificial IntelligenceCarsten Ullrich × Pedagogically Founded Courseware Generation for Web-Based LearningAn HTN-Planning-Based Approach Implemented in PaigosCarsten UllrichSpringer BerlinSoftcover2008 Pedagogically Founded Courseware Generation for Web-Based LearningAn HTN-Planning-Based Approach Implemented in PaigosCarsten UllrichSpringer BerlineBook2008