Robert Sedgewick Gaston Gonnet Conrado / Cristina Gomes Fernandes Yoshiharu Kohayakawa / Oliveira Daniel Panario / Carlos Gustavo / Andrea Montanari John Dixon Brigitte / Gaston Gonnet Conrado Mart / Conrado Mart´ınez / John Dixon Brigitte Vall / Bruno Salvy / Daniel Panario / Brendan McKay Andrea Montanari John / Julien Clement / Roberto Imbuzeiro de Oliveira Daniel / /