TY  - GEN
AU  - Villiers, Michael de
TI  - An alternative approach to proof in dynamic geometry
T2  - Studies in Mathematical Thinking and Learning
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -