id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iassist-84	Chappell, Cressida	Changing Boundaries: Gazeteers, Information Retrieval and Data Browsing	2000	3	.pdf	application/pdf	1679	71	42	These problems are greatest with historical data, which are often associated with geographic names that have changed, or with geographical units that no longer exist, or with geographical units whose boundaries have changed significantly. In web-based data delivery services the History Data Service would use a comprehensive UK historical gazetteer to support geographical data subsetting.	cache/iassist-84.pdf	txt/iassist-84.txt