Paola Flocchini, Bernard Mans, Nicola Santoro. Preface. In Paola Flocchini, Bernard Mans, Nicola Santoro, editors, Structural Information and Communication Complexity, 1st International Colloquium, SIROCCO 1994, Carleton University, Ottawa, Canada, May 18-20, 1994, Proceedings. Carleton University Press, 1994.