Claws4: The Tagging Of The British National Corpus. - Geoffrey Leech; Roger Garside; Michael Bryant (COLING, 1994)

Beyond Skeleton Parsing: Producing a Comprehensive Large-Scale General-English Treebank With Full Grammatical Analysis. - Ezra Black; Stephen Eubank 001; Hideki Kashioka; David M. Magerman; Roger Garside; Geoffrey Leech (COLING, 1996)