@article {16641,
	title = {The Role of Spatial Knowledge in Expert Systems},
	journal = {Representation and Processing of Spatial Knowledge, TR-1275. Dept. of Comp. sci {\quotedblbase}Univ. of Maryland, May},
	year = {1983},
	month = {1983///},
	pages = {3 - 8},
	author = {Reggia, James A.}
}
