Research in Science Education at the University of Essen
In: European Research in Science Education : Proceedings of the First Ph. D. Summerschool / Lijnse, P.l. (Eds.). - The First Ph. D. Summerschool, July 1993, Driebergen, Holland - Utrecht: CD-Beta Press, 1994 - (CD-Beta series on research in education ; 13), pp. 108 - 113
1994book article/chapter in Proceedings
Chemistry