Hyuntae Cho Hoon Choi Woonghyun Lee Yeonsu Jung Yunju Baek Design and Implementation of a Smart Tag System for IT-Based Port Logistics. 32-43 2006 conf/uic/2006 UIC http://dx.doi.org/10.1007/11833529_4 db/conf/uic/uic2006.html#ChoCLJB06