@inproceedings{DocEng-2009-BattleB,
	author        = "Steve Battle and Helen Balinsky",
	booktitle     = "{Proceedings of the Ninth Symposium on Document Engineering}",
	doi           = "10.1145/1600193.1600200",
	isbn          = "978-1-60558-575-8",
	pages         = "25--28",
	publisher     = "{ACM}",
	title         = "{Modelling composite document behaviour with concurrent hierarchical state machines}",
	year          = 2009,
}