Boehm B., Horowitz E., Madachy R., Reifer D., Clark B. K., Steece B., Winsor Brown A., Chulani S. and Abts C.2000Software Cost Estimation with COCOMO II. Upper Saddle River, NJ: Prentice Hall PTR.

Horrocks I., Patel-Schneider P. F., Boley H., Tabet S., Grosof B., and Dean M.2004SWRL: A Semantic Web Rule Language Combining OWL and RuleML. W3C Member Submission. Available at www.w3.org/Submission/SWRL/.

KAON2—Ontology Management for the Semantic Web. Project homepage. Available at www.kaon2.semanticweb.org/

Kriwaszek F.1988 LogiCalc—A PROLOG Spreadsheet. In Michie D., Hayes J. and Richards J. (eds.), Machine Intelligence, 11 pp. 193–208, Oxford University Press, Inc.

McGuinness D. L. and van Harmelen F (ed.). 2004OWL Web Ontology Language Overview. W3C Recommendation 10 February 2004. Available at www.w3.org/TR/2004/REC-owl-features-20040210/.

Nardi B.1993A Small Matter of Programming: Perspectives on End User Computing. Cambridge, MA:The MIT Press.

Nuñez F.2000 An extended spreadsheet paradigm for data visualization systems and its implementation. Masters Thesis, Dept. of Computer Science, University of Cape Town.

RuleML Hompeage. Available at www.ruleml.org/.

Spenke M. and Beilken C.1989 A spreadsheet interface for logic programming. In Bice K. & Lewis C. (eds.), Proceedings of the SIGCHI Conference on Human Factors in Computing Systems: Wings for the Mind, ACM Press, New York, NY, USA pp. 75–80.

SweetRules Project Home Page. Available at www.sweetrules.projects.semwebcentral.org