edited by Willem R. H. Koops and Joachim Wieder. edited by Bill Katz and Robin Kinder. edited by J. F. A. Ajayi and Michael Crowder. edited by Geoffrey H. Bourne and George W. Kidder. edited by A. S. Strub and H. Ehringer. edited by M. V. K. Chari and P. Silvester. edited by Willem Hendrik Gispen and J鑟rg Traber.