Ezra Black Stephen Eubank Hideki Kashioka David M. Magerman Roger Garside Geoffrey Leech Beyond Skeleton Parsing: Producing a Comprehensive Large-Scale General-English Treebank With Full Grammatical Analysis. 107-112 1996 COLING http://acl.ldc.upenn.edu/C/C96/C96-1020.pdf db/conf/coling/coling1996.html#BlackEKMGL96