TY  - GEN
AU  - Ploetzner, Rolf
AU  - Spadaa, Hans
AU  - Stumpf, Michael
AU  - Opwis, Klaus
TI  - Learning qualitative and quantitative reasoning in a microworld for elastic impacts
KW  - Psicologia e Educacao
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r4.htm
ER  -