1. The Americal Chemical Society, Chemical Abstracts, Chemical Abstract Service, Columbus, OH.
2. Analytical Abstracts, The Royal Society of Chemistry, Letchworth, U.K.
3. Expert systems for chemical analysis (ESPRIT Project 1570);Goulder;Chromatographia,1988
4. Conceptual Infonnation Processing;Schank,1975
5. Script applications, computer understanding of Newspaper Stories;Cullingford,1978