Young Tae Kim Seong Joon Lee Kwang Seon Ahn An Efficient Anti-collision Protocol Using Bit Change Sensing Unit in RFID System. 81-88 2008 RTCSA http://dx.doi.org/10.1109/RTCSA.2008.52 conf/rtcsa/2008 db/conf/rtcsa/rtcsa2008.html#KimLA08