@inbookBiehler_Durand-Guerrier_2020, place=Bizerte, Tunisia, title=University Mathematics Didactic Research on Number Theory, Algebra, Discrete Mathematics, Logic, booktitle=Proceedings of the Third Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2020, 12-19 September 2020), publisher=University of Carthage and INDRUM, author=Biehler, Rolf and Durand-Guerrier, Viviane, editor=Hausberger, T. and Bosch, M. and Chelloughi, F., year=2020