Rosa Lin,  Shih-Yu Huang,  Graeme B. Bell,  and Yeuan-Kean Lee,  "A New CAPTCHA Interface Design for Mobile Devices".  In  Australasian User Interface Conference, Australasian Computer Science Week (ACSW2011), Perth, Australia, and to appear in the ACM digital library,    2011 .

Yeuan-Kuen Lee,  Graeme Bell,  Shih-Yu Huang,  Ran-Zan Wang,  and Shyong Jian Shyu,  "An Advanced Least-Significant-Bit Embedding Scheme for Steganographic Encoding".  In  Advances in Image and Video Technology (PSIVT2009), Tokyo, Japan, LNCS 5414,  pages 349-360.    2009 .

Shih-Yu Huang,  Yeuan-Kuen Lee,  Graeme B. Bell,  and Zhan-He Ou,  "A Projection-based Segmentation Algorithm for Breaking MSN and YAHOO CAPTCHAs".  In  Proceedings of the 2008 International Conference of Signal and Image Engineering (ICSIE'08), London, UK,  pages 1-.  Jul  2008 .

Graeme B. Bell and  Michael Livesey,  "The Existence of Local Minima in Local-Minimum-Free Potential Surfaces".  In  Towards Autonomous Robotic Systems (TAROS 2005), London, UK,    2005 .

Graeme B. Bell and  Michael Weir,  "Agent Navigation Using Potential Fields and Forward Chaining".  In  PREP 2004 Postgraduate Research Conference in Electronics, Photonics, Communications and Networks and Computing Science.,    2004 .

Graeme B. Bell and  Michael Weir,  "Forward Chaining for Robot and Agent Navigation using Potential Fields".  In  27th Australasian Computer Science Conference (ACSC2004), Dunedin, New Zealand,    2004 .