Survey of the State of the Art in Human Language Technology
Cole, Ronald and Mariani, Joseph and Uszkoreit, Hans and Varile, G. B. and Zaenen, Annie and Zampolli, Antonio and Zue, Victor W.
Cambridge University Press. Cambridge. 1997

lexicons which provide rich information about morphological syntactic and semantic properties of words and are developed in unification- and constraint- based grammar formalisms which encode lexical descriptions as feature structures which have a clear mathematical and computational interpretation and constitute ideal data structures for complex word knowledge information encoding.