Engelbert Niehaus, Dr. Universitaet Koblenz-Landau Projects/Interests: Arbeitsgebiet: Schnittstelle Informatik und Mathematikdidaktik (1) modelling in Informatics for web based applications in Mathematics Education. (2) Intergration of web based content management of student teachers into lectures and seminars. Papers: Email: niehaus@uni-landau.de Homepage: