TY  - BOOK
AU  - Pieters,Jules M.
AU  - Breuer,Klaus
AU  - Simons,P.Robert-Jan
TI  - Learning environments : : contributions from Dutch and German resea rch / 
SN  - 3540529039 (Berlin : alk. paper)
PY  - 1990///
CY  - Berlin : 
PB  - Springer-Verlag, 
KW  - Educational psychology
N1  -  Includes bibliographical references
ER  -