Anind K. Dey Gregory D. Abowd Mike Pinkerton Andrew Wood CyberDesk: A Framework for Providing Self-Integrating Ubiquitous Software Services. 75-76 1997 ACM Symposium on User Interface Software and Technology http://doi.acm.org/10.1145/263407.263511 db/conf/uist/uist1997.html#DeyAPW97