Graph-Theoretic Concepts in Computer Science: 20th International Workshop, WG '94 Herrsching, Germany, June 16–18, 1994 Proceedings
Mayr, Ernst W ; Schmidt, Gunther ; Tinhofer, Gottfried Schmidt, Gunther ; Tinhofer, Gottfried ; Mayr, Ernst W.
Berlin, Heidelberg: Springer Berlin Heidelberg 1995
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