Lesk, M.E., “Can Machine-Readable Dictionaries Replace a Thesaurus for Searches in Online Catalogs?,” Proc. 3rd Annual Conference of the UW Centre for the New OED, "The Uses of Large Text Databases", 1, 4, pp. 65-74, ACM Press, Waterloo (November 1987). Also presented at the Public Record Office, Kew; see their conference on preservation.