TOAS Intelligence Mining; Analysis of Natural Language Processing and Computational Linguistics. - Robert J. Watts; Alan L. Porter; Scott W. Cunningham; Donghua Zhu 001 (PKDD, 1997)

Functional Analysis: Deriving Systems Knowledge from Bibliographic Information Resources. - Robert J. Watts; Alan L. Porter; Cherie Courseault (Inf. Knowl. Syst. Manag., 1999)