International Workshop on Granph-Theoretic Concepts in Computer Science.International Workshop on Granph-Theoretic Concepts in Computer Science (17th : 1991 : Fischbachau)：Granph-Theoretic Concepts in Computer Science : proceedings.Springer,1991.
International Workshop on Granph-Theoretic Concepts in Computer Science (17th : 1991 : Fischbachau)：Granph-Theoretic Concepts in Computer Science : proceedings
International Workshop on Granph-Theoretic Concepts in Computer Science.Springer,1991.
