COSTOC (Computer Supported Teaching 
of Computer Science) 


Hub er, FI I: A Proposal for an Authoring 
System Avoiding Common Errors in Tutorial LessonsIMit 
Abb.1 -Graz: Techn. Univ.Graz 1988. 21 S. 
6 S. 8° 
(Institute fUr Informationsverarbeitung. Forschungsberi 
chte. 265.)