De Bock, Dirk. 2024. “The Rise and Breakthrough of the International Modern Mathematics/New Math Movement in the 1950s”. Annales Universitatis Paedagogicae Cracoviensis | Studia Ad Didacticam Mathematicae Pertinentia 16 (December):85-102. https://doi.org/10.24917/20809751.16.6.