George A. Miller, Richard Beckwith, Christiane Fellbaum,Derek Gross, and Katherine Miller (1993): Introduction to WordNet: An On-line Lexical Database.
George A. Miller (1993): Nouns in WordNet: A Lexical Inheritance System
Christiane Fellbaum, Derek Gross, and Katherine Miller(1993): Adjectives in WordNet.
Christiane Fellbaum (???): English Verbs as a Semantic Net
Richard Beckwith, George A. Miller, and Randee Tengi (???): Design and Implementation of the WordNet Lexical Databaseand Searching Software