TY  - GEN
AU  - Christiensen, Iben
TI  - Are theories in mathematics education of any use to practice?
KW  - Psicologia e Educacao
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r4.htm
ER  -