id: 70207952 dt: a an: 70207952 au: Huang, Qingcai; Li, Donghong; Huang, Qingyun ti: A bi-direction guard system design of car based on GPS and GSM so: CASoN, 505-508 (2010). py: 2010 pu: la: EN cc: ut: ci: li: doi:10.1109/CASoN.2010.119