TY  - BOOK
AU  - Kolloffel, B.
TI  - Getting the picture: the role of external representations in simulation-based inquiry learning
SN  - 97809036527750
AV  - DUCE QA20.C65 
PY  - 2008///
CY  - Enschede
PB  - Netherlands organisation for scientific research
KW  - Science
N1  - Includes appendix and references
ER  -