J. Bohn et al., “Social, Economical, and Ethical Implications of Ambient Intelligence and Ubiquitous Computing”, in Ambient Intelligence, Springer Verlag, 2005.
(doi: 10.1007/b138670)
Download PDF

L. Leahu, P. Sengers, M. Mateas, “Interactionist AI and the Promise of Ubicomp, or how to put your box in the world without putting the world in your box”, Ubicomp 2008 Conference, Seoul (KR), 2008.
(doi: doi:10.1016/j.pmcj.2009.06.002)
Download PDF

M. Weiser, The Computer for the 21st Century, Scientific American, September 1991.
(doi: http://doi.acm.org/10.1145/329124.329126)
Download PDF