R Martens

Validation of a theory about the functions and effects of embedded support devices in written study materials

Martin Valcke, R Martens, M. Valcke, 1993 .

The use of embedded support devices in interactive learning environments: the impact of student characteristics. Theoretical base

Martin Valcke, Gilberte Schuyten, S Portier, 1995 .

Demand-driven education with interactive learning environments

Martin Valcke, S Portier, H Weges, 1997 .