Muan Hong Ng Steven Johnston Bing Wu Stuart E. Murdock Kaihsu Tai Hans Fangohr Simon J. Cox Jonathan W. Essex Mark S. P. Sansom Paul Jeffreys 657-664 2006 22 Future Generation Comp. Syst. 6 http://dx.doi.org/10.1016/j.future.2005.10.005 db/journals/fgcs/fgcs22.html#NgJWMTFCESJ06