TY  - BOOK
AU  - Balacheff, Nicolas
AU  - Lazonder, Ard
AU  - Barnes, Sally
AU  - Ludvigsen, Sten
AU  - Jong, Ton De
TI  - Technology Enhanced Learning: Principles and Products
SN  - 9781402098260
U1  - 371.3 
PY  - 2009///
CY  - New York
PB  - Springer Science+Business Media, Inc
KW  - Educational Innovations
KW  - Education Technology
ER  -