Eisenmann, P., Novotná, J., & Přibyl, J. (2022). Technological devices in the development of pupils’ expertise in the use of selected heuristic strategies. Annales Universitatis Paedagogicae Cracoviensis | Studia Ad Didacticam Mathematicae Pertinentia, 14, 43–79. https://doi.org/10.24917/20809751.14.4