Choong-Hee Lee Seong-Hwan Oh Jae-Hyun Kim An Enhanced Ubiquitous Identification System Using Fast Anti-collision Algorithm. 53-62 2007 conf/uic/2007 UIC http://dx.doi.org/10.1007/978-3-540-73549-6_6 db/conf/uic/uic2007.html#LeeOK07