Golsteijn, C; Gallacher, S; Koeman, L; Wall, L; Andberg, S; Rogers, Y; Capra, L; (2015) VoxBox: A Tangible Machine that Gathers Opinions from the Public at Events. In: Verplank, B and Ju, W and Antle, AN and Mazalek, A and Mueller, F, (eds.) TEI '15: Proceedings of the Ninth International Conference on Tangible, Embedded, and Embodied Interaction. (pp. pp. 201-208). Association for Computing Machinery (ACM): New York, NY, USA.