TY  - BOOK
AU  - Pol, H.
TI  - Computer based instructional support during physics problem solving: a case for student control
SN  - 9789036740449
AV  - DUCE T73.P597 
PY  - 2009///
CY  - Netherlands
PB  - FSC, 
KW  - Science
N1  - Includes appendix and references
ER  -