Højsted, I. H. 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; AU Library Scholarly Publishing Services: Aarhus, DK, 2021. https://doi.org/10.7146/aul.413.