TY  - BOOK
AU  - [et al]
AU  - Weiss, Joel
TI  - The international handbook of virtual learning  environments. Vol. 1
SN  - 140203802X
U1  - 371.334 
PY  - 2006///
CY  - Dordrecht
PB  - Springer
KW  - Education-Computer network resources
KW  - Internet in education
KW  - Virtual  reality in education
N1  - PR
ER  -