1. H. Shapiro and C. Varian:: Information Rules: A Strategic Guide to the Network Economy, Harvard Business School Press, Boston (1999).
2. International Electrotechnical Commission: Function Blocks, Part1–Architecture, IEC PAS 61499–1, Geneva (2000).
3. International Electrotechnical Commission: Function Blocks, Part 2–Software tool requirements, IEC PAS 61499–2, Geneva (2001).
4. Foundation for Intelligent Physical Agents: FIPA Abstract Architecture Specification, http://www.fipa.org/specs/fipa00001/ (2001).
5. M.Fletcher, E. Garcia-Herreros, J.H. Christensen, S.M. Deen and R. Mittmann: “An Open Architecture for Holonic Cooperation and Autonomy”, in 11
th
International Workshop on Database and Expert Systems Applications (DEXA 2000), IEEE Computer Society, New York (2000).