Taewan Gu Seong-Jun Hong Jae-Bong Yoo Kwang-Mo Lee Personal Preference for Reliable Transaction Identification on Web Service. 150-155 2008 ICIW http://doi.ieeecomputersociety.org/10.1109/ICIW.2008.114 conf/iciw/2008 db/conf/iciw/iciw2008.html#GuHYL08