Mining Operational Data for Improving GSM Network Performance. - António Leung; Simon Fong 001; Edison Lai (FSKD, 2002)

Mobile Mini-payment Scheme Using SMS-Credit. - Simon Fong 001; Edison Lai (ICCSA (2), 2005)

Supporting mobile payment QOS by data mining GSM network traffic. - Edison Lai; Simon Fong 001; Yang Hang (iiWAS, 2008)