@inproceedings{LICS-1992-VaananenK,
	author        = "Phokion G. Kolaitis and Jouko A. Väänänen",
	booktitle     = "{Proceedings of the Seventh Annual Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.1992.185547",
	isbn          = "0-8186-2735-2",
	pages         = "348--359",
	publisher     = "{IEEE Computer Society}",
	title         = "{Generalized Quantifiers and Pebble Games on Finite Structures}",
	year          = 1992,
}