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2. Christensen, J.H. Function Block Development Kit, holobloc.com, 2004.
3. Gruver, W., Kotak, D., van Leeuwen, E., Norrie, D. (2001) “Holonic manufacturing systems — phase 2”, the International IMS Project Forum 2001, Ascona, Switzerland.
4. HMS, Holonic Manufacturing Systems Consortium Web Site, http://hms.ifw.uni-hannover.de/, 2004.
5. IEC TC65/WG6 (2000) Voting Draft — Publicly Available Specification — Function Blocks for Industrial Process-measurement and Control Systems, Part 1-Architecture, International Electrotechnical Commission.