1. Leitão, P.: An Agile and Adaptive Holonic Architecture for Manufacturing Control, PhD Thesis, University of Porto (2004)
2. Gruber, T.R.: A translation Approach to Portable Ontology Specifications. Knowledge Acquisition 5, 199–220 (1993)
3. Lacy, L.: OWL: Representing Information Using the Web Ontology Language, Trafford Publishing (2005)
4. Schlenoff, C., Ivester, R., Knutilla, A.: A robust process ontology for manufacturing systems integration. In: Proceedings of 2nd International Conference on Engineering Design and Automation (1998)
5. Lemaignan, S., Siadat, A., Dantan, J.-Y., Semenenko, A.: MASON: A Proposal For An Ontology Of Manufacturing Domain Distributed Intelligent Systems. In: Proceedings of International IEEE Workshop on Distributed Intelligent Systems (DIS 2006), Collective Intelligence and Its Applications, pp. 195–200 (2006)