sponsored by the Department of Electrical Engineering and the Coordinated Science Laboratory of the University of Illinois at Urbana-Champaign ; conference co-chairmen F. P. Preparata, M. B. Pursley. sponsored by the Department of Electrical Engineering and the Coordinated Science Laboratory of the University of Illinois and the Circuit Theory and Automatic Control Groups of the Institute of Electrical & ELectronics Engineers. edited by J. B. Cruz and C. L. Chen ; sponsored by the Department of Electrical Engineering and the Coordinated Science Laboratory of the University of Illinois at Urbana-Champaign. edited by J. B. Cruz and A. H. Haddad ; sponsored by the Department of Electrical Engineering and the Coordinated Science Laboratory of the University of Illinois at Urbana-Champaign. The Department of Electrical Engineering and the Coordinated Science Laboratory of the University of edited by A. H. Haddad, G. Metze and T. N. Trick ; sponsored by the Department of Electrical Engineering and the Coordinated Science Laboratory of the University of Illinois Urbana, Illinois and the Circuit Theory and Automatic Control Groups of the Institute of Electrical & Electronics Engineers.