edited by F. Koenigsberger, and S.A. Tobias. edited by F. Koenigsberger and S. A. Tobias. edited by H. Eggerer and R. Huber. edited by I. Gohberg and M. Kac. edited by G.S.T. Armer and F.K. Garas. edited by L.O. Hertzberger and W. Hoogland. edited by P.H. van Knippenberg and C.W. Hilbers. edited by H. Halberstam, and C. Hooley. edited by R. Buscall, T. Corner, and J.F. Stageman. edited by E. G. Derouane and A. A. Lucas.