Graph-Theoretic Concepts in Computer Science 22nd International Workshop, WG '96, Cadenabbia, Italy, June 12-14, 1996, Proceedings - D'Amore, Fabrizio; D'Amore, Fabrizio; Franciosa, Paolo Giulio; Franciosa, Paolo Giulio; Marchetti-Spaccamela, Alberto; Marchetti-Spaccamela, Alberto (Springer Berlin Heidelberg : Imprint: Springer, 1997)