@Article{Characterizing_Knowledge_Depth_in_Intelligent_Safety_Systems,
	author = "Tim Finin and David Klein",
	title = "{Characterizing Knowledge Depth in Intelligent Safety Systems}",
	month = "October",
	year = "1989",
	pages = "129-142",
	number = "2-3",
	volume = "3",
	journal = "Applied Artificial Intelligence",
	publisher = "Taylor & Francis",
}