TY - CONF
TI - Computer algebra systems as mathematical learning environments
AU - Hillel, Joel
PY - 1993
SP - 45-53
PB - Εκπαιδευτήρια Δούκας
T2 - Logo-like learning environments:reflection and prospects. proceedings of the fourth European Logo Conference, University of Athens, Department of Informatics, 28-31 August 1993, Athens Greece
ER -