Ciosek, M. and Sajka, M. (2024) “Anna Sierpinska (1947-2023) - Outstanding Researcher in Mathematics Education”, Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia, 16, pp. 117–134. doi: 10.24917/20809751.16.8.