Algebraic thinking from a cultural semiotic perspective. Radford L. L Radford - Research in Mathematics Education, 2010 - Taylor & Francis GSID: jIcGTt8yrNMJ
Layers of generality and types of generalization in pattern activities.'Niveles de generalidad y tipos de generalizaciones en actividades de patrones'. Radford L. L Radford - Pna, 2010 - redined.educacion.gob.es GSID: xqxD2TG7EZAJ
Algebraic thinking and the generalization of patterns: A semiotic perspective. Radford L. L Radford, CS Peirce - Proceedings of the 28th conference of the …, 2006 - academia.edu GSID: zv9biGa5umkJ
