TY - CONF AU - Häsel-Weide, Uta AU - Nührenbörger, M. ED - Rezat, Sebastian ED - Fan, L. ED - Hattermann, M. ED - Schumacher, J. ED - Wuschke, H. ID - 32089 T2 - Proceedings of the Third International Conference on Mathematics Textbook Research an Development TI - Materials für inclusive mathematics education - Design principles an practices. ER -