6Thomas Huk, Mattias Steinke, Christian Floto. Computer Animations as Learning Objects: What Is an Efficient Instructional Design, And for Whom [R].Pro- ceedings of Iadis International Conference www/Inter- net 2003:1187-1190.
7Thomas Huk, Mattias Steinke, Christian Floto. Computer-Animations in Education: The Impact of Graphical Quality (3d/2d) And Signals [R].Proceed- ings of E-Learn 2003: 1036-1037.