TY  - BOOK
A2  - Hedegaard, Mariane
T1  - Learning activity and development
Y1  - 1999
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/20724
SN  - 87-7288-825-6
PB  - Univ. Potsdam
CY  - Aarhus
ER  -