@book{Hoppe2007,
title = {The Role of Technology in CSCL: Studies in Technology Enhanced Collaborative Learning (Computer-Supported Collaborative Learning Series) },
editor = {Ulrich H. Hoppe and H. Ogata and A. Soller},
note = {ISBN: 978-0-387-71135-5},
series = {Computer-Supported Collaborative Learning Series , Vol. 9 },
year = {2007},
keywords = {collaboration collaborative cscl cvk learning }
}
::