@techreport{TD:100719,
	att_abstract={{Twenty years ago, Weiser set forth his compelling vision of ubiquitous computing (ubicomp), giving rise to a rich multifaceted area of research. This community spawned several major conferences, journals, and magazines, including IEEE Pervasive Computing ten years ago. At this milestone, we take stock of where ubicomp systems research has journeyed and postulate the major challenges going forward.}},
	att_authors={rc177e},
	att_categories={C_NSS.13, C_NSS.7},
	att_copyright={{IEEE}},
	att_copyright_notice={{This version of the work is reprinted here with permission of IEEE for your personal use. Not for redistribution. The definitive version was published in IEEE Pervasive Computing. {{, Volume 11}}{{, Issue 1}}{{, 2012-01-01}}
}},
	att_donotupload={},
	att_private={false},
	att_projects={},
	att_tags={Ubiquitous computing},
	att_techdoc={true},
	att_techdoc_key={TD:100719},
	att_url={http://web1.research.att.com:81/techdocs_downloads/TD:100719_DS1_2011-11-07T19:03:54.538Z.pdf},
	author={Ramon Caceres and Adrian Friday},
	institution={{IEEE Pervasive Computing}},
	month={January},
	title={{Ubicomp Systems at 20: Progress, Opportunities, and Challenges}},
	year=2012,
}