Stuart Reeves Designing Interfaces in Public Settings - Understanding the Role of the Spectator in Human-Computer Interaction 2011 1-190 Springer Human-Computer Interaction Series http://dx.doi.org/10.1007/978-0-85729-265-0 http://dx.doi.org/10.1007/978-0-85729-265-0 978-0-85729-264-3