International Workshop on Granph-Theoretic Concepts in Computer Science.International Workshop on Granph-Theoretic Concepts in Computer Science (13th : 1987 : Kloster Bans))：Granph-Theoretic Concepts in Computer Science : proceedings.Springer,1988.
International Workshop on Granph-Theoretic Concepts in Computer Science (13th : 1987 : Kloster Bans))：Granph-Theoretic Concepts in Computer Science : proceedings
International Workshop on Granph-Theoretic Concepts in Computer Science.Springer,1988.
