Højsted, Ingi Heinesen. Toward Marvels in Dynamic Geometry Teaching and Learning: Developing Guidelines for the Design of Didactic Sequences That Exploit Potentials of Dynamic Geometry to Foster students’ Development of Mathematical Reasoning Competency. Ph.D-afhandlinger. Aarhus, DK: Aarhus Universitet, 2021. Accessed November 16, 2025. https://openbooks.kb.dk/au/catalog/book/413.