Edited by Y. I. Sorokin and H. Kadota. edited by J.T. Morgan and D. Lewis. edited by B. P. Straughan and S. Walker. edited by J. M. Lothian and T. W. Craik. edited by M. A. Epstein and B. G. Achong. edited by G. Grossmann and L. Ledebo. edited by G.G. Gibson and R. Walker. edited by J.A. Osborn and I.S. Jacobs. edited by A. Bensoussan and J. L. Lions. edited by D. A. Shapton and R. G. Board.