%0 Journal Article
%A Tinghuai Ma
%A Sen Yan
%A Jin Wang
%A Sungyoung Lee
%T Privacy Preserving in Ubiquitous Computing: Classification & Hierarchy
%J Computer Science and Information Systems
%D 2011
%V 8
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CSIS_2011_8_4_a13/
%F CSIS_2011_8_4_a13