Erschienen in: TAATGEN, Niels, ed. and others. Proceedings of the Thirty-First Annual Conference of the Cognitive Science Society : July 29 - August 1, 2009, Vrije Universiteit, Amsterdam, Netherlands. Cognitive Science Society, 2009, pp. 2232-2237. ISBN 978-0-9768318-5-3
0000-0001-6273-178X 