Pervasive Advertising 2011
Hans Jörg Müller, Florian Alt, Daniel Michelis (Eds.):
Pervasive Advertising.
Human-Computer Interaction Series Springer 2011, ISBN 978-0-85729-351-0 
Ursula Stalder:
Digital Out-of-Home Media: Means and Effects of Digital Media in Public Space.
31-56
data released under the ODC-BY 1.0 license
