edited by M. V. K. Chari and P. Silvester. edited by G. Cochard and P. Kessler. edited by R. G. Edwards and J. F. Porter. edited by J. F. A. Ajayi and Michael Crowder. edited by B. P. Straughan and S. Walker. edited by S. Martellucci and A.N. Chester. edited by H. Melchior and A. Sollberger. edited by T. J. Wieting and M. Schl鑥ter. edited by W. J. Irvine and J. F. Porter. edited by W. Oettli and K. Ritter.