Foreground and background text in retrieval. AAAI Technical Report SS-02-09.. 2002.
Dependency Concordances. International Journal of Lexicography. 11:187-203.. 1998.
A Non-Projective Dependency Parser. 5th Conference on Applied Natural Language Processing. :64–71.. 1997.
Multi-layered Annotation Scheme for Treebank Annotation. 2nd Workshop on Treebanks and Linguistic Theories.. 2003.