edited by S.K. Mitter and A. Moro. edited by M.H. Walter and R.F. Cox. edited by E. Wecker and I. Horak. edited by P. L. Butzer and J. Korevaar. edited by N.R. Baker and H. Thomas. edited by W.G. Cutler and R.C. Davis. edited by W. Kiefer and D.A. Long. edited by M.M. Klepfer and D.B. Morrison. edited by K.W. Fuller and J.R. Gallon. edited by A.R. Butler and M.J. Perkinks.