edited by W. Oettli and K. Ritter. edited by Martin M. Rieger. edited by William E. Miller. edited by E. Camatini and T. Kester. edited by A. M. Neville, D. Slater. edited by Alan K. Miller. edited by Curtis L. Carter. edited by David F. Rider. edited by J.P. Riley & R. Chester. edited by T. Mulvey and R. K. Webster.