Martin Graff

发表

Evaluating a web based intelligent tutoring system for mathematics at German lower secondary schools

Peter Mayer, Martin Graff, Morena Lebens, 2008, Education and Information Technologies.

Learning from web-based instructional systems and cognitive style

Martin Graff, M. Graff, 2003, Br. J. Educ. Technol..

Performance in e-learning: online participation and student grades

Jo Davies, Martin Graff, M. Graff, 2005, Br. J. Educ. Technol..