@inbook{9e38623a4a5845b08df31a4bd7373bbe,
title = "Visualization of agreement and discussion processes during online collaborative learning",
author = "J.J.H.M. Janssen and G. Erkens and J.G.M. Jaspers and M. Broeken",
year = "2006",
language = "Undefined/Unknown",
publisher = "Sense Publishers",
pages = "175--184",
editor = "\{G. Clarebout\}, \{J. Ellen\}",
booktitle = "Avoiding simplicity, confronting complexity: Advances in studying and designing powerful (computer-based) learning environments",
}