edited by L.T. Evans and W.J. Peacock. edited by R.G. Evans and S. Wilson. edited by N.R. Comins and J.B. Clark. edited by I.S. Jacobs and E.G. Spencer. edited by J.C. Simon and R.M. Haralick. edited by D.G. Jones and D.R. Davies. edited by J. -L. Gervais and M. Jacob. edited by D.A. Linkens and D.P. Atherton. edited by R.A. Cairns and J.J. Sanderson. edited by A.G. Milnes and C.J. Miner.