TY  - JOUR
AU  - Olli Martio
TI  - Long term effects in learning mathematics in Finland--curriculum changes and calculators
JO  - The Teaching of Mathematics
PY  - 2009
SP  - 51 
VL  - XII
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM2_2009_XII_2_a0/
LA  - en
ID  - TM2_2009_XII_2_a0
ER  -