Lei Jing Noriko Yamamoto Zixue Cheng Hui-Huang Hsu Tongjun Huang A Smart Schoolbag System for Reminding Pupils of the Forgotten Items. 44-50 2006 conf/uic/2006 UIC http://dx.doi.org/10.1007/11833529_5 db/conf/uic/uic2006.html#JingYCHH06