@inproceedings{ICALP-1989-Courcelle,
	author        = "Bruno Courcelle",
	booktitle     = "{Proceedings of the 16th International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/BFb0035762",
	isbn          = "3-540-51371-X",
	pages         = "207--221",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{The Definability of Equational Graphs in Monadic Second-Order Logic}",
	volume        = 372,
	year          = 1989,
}