Rayner, J. C. W. (university Of Newcastle, Livingston, G. C. (1) Mcgonagle, Ian (university Of Lincoln) (1) Mcleod, John (1) Wooldridge, Michael (university Of Liverpool) (1) Chong, Edwin K. P. (colorado State University), Lu, Wu-sheng (university Of Victoria, Zak, Stanislaw H. (purdue University) (1)