Bettina Törpel. Participatory design: a multi-voiced effort. In Olav W. Bertelsen, Niels Olof Bouvin, Peter Gall Krogh, Morten Kyng, editors, Proceedings of the 4th Decennial Conference on Critical Computing: Between Sense and Sensibility, 2005, Aarhus, Denmark, August 20-24, 2005. pages 177-181, ACM, 2005. [doi]