@inproceedings{HCI-SHI-1993-Warren,
	author        = "Clive Warren",
	booktitle     = "{Proceedings of the Fifth International Conference on Human-Computer Interaction. Volume 2: Software and Hardware Interfaces}",
	isbn          = "0-444-89540-X",
	pages         = "285--290",
	publisher     = "{Elsevier}",
	title         = "{The TOM Approach to System Development: Methods and Tools for Task Oriented Modelling of Real-Time Safety Critical Systems}",
	year          = 1993,
}