@inproceedings{LICS-2005-DawarO,
	author        = "Anuj Dawar and Martin Otto",
	booktitle     = "{Proceedings of the 20th IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2005.27",
	isbn          = "0-7695-2266-1",
	pages         = "21--30",
	publisher     = "{IEEE Computer Society}",
	title         = "{Modal Characterisation Theorems over Special Classes of Frames}",
	year          = 2005,
}