Farther Than You May Think: An Empirical Investigation of the Proximity of Users to Their Mobile Phones.

Shwetak N. Patel Julie A. Kientz Gillian R. Hayes Sooraj Bhat Gregory D. Abowd Farther Than You May Think: An Empirical Investigation of the Proximity of Users to Their Mobile Phones. 123-140 2006 conf/huc/2006 Ubicomp http://dx.doi.org/10.1007/11853565_8 db/conf/huc/ubicomp2006.html#PatelKHBA06