@inbook{7854d6eaa351422285e031d8bf9c8eaa,
title = "Visualization of argumentation as shared activity",
author = "G. Erkens and P.A. Kirschner and J.J.H.M. Janssen",
year = "2010",
language = "Undefined/Unknown",
isbn = "978-0-415-55674-3",
series = "EARLI book series: New perspectives on learning and instruction",
publisher = "Routledge",
pages = "242--260",
editor = "L. Verschaffel and {De Corte}, E. and {De Jong}, T. and J. Elen",
booktitle = "Use of external representations in reasoning and problem solving: Analysis and improvement",
}