by Law Smith, M.J, Perrett, D.I, Jones, B.C, Cornwell, R.E, Moore, F.R, Feinberg, D.R, Boothroyd, L.G, Durrani, S.J, Stirrat, M.R, Whiten, S, Pitman, R.M, Hillier, S.G
Published in Proceedings of the Royal Society. B, Biological sciences (22.01.2006)

by Tiddeman, B.P., Stirrat, M.R., Perrett, D.I.
Published in Computer graphics forum (01.09.2005)