@book{12142,
	author = {Workshop on "Graph Theoretic Concepts in Computer Science", Bad Honnef, June 15-18, 1980 and Noltemeier, Hartmut ; ed.},
	title = {Graph theoretic concepts in computer science; proceedings of the workshop WG 80.},
	publisher = {Springer-Verlag},
	year = {1981},
	address = {Berlin}
}