DIB Lynda, Laskri Mohamed Tayeb, “Formalisation et représentation des ontologies par les réseaux de Pétri à objets,” Proceedings of the 13th International Business Information Management Association (IBIMA), ISBN: 978-0-9821489-2-1, 9-10 November 2009, Marrakech, Morocco, p.238-244.
Fouzia Anguel and Mokhtar Sellami, “Knowledge Management for Fault Diagnosis of Gas Turbines Using Case Based Reasoning,” Proceedings of the 11th International Business Information Management Association (IBIMA), ISBN : 978-0-9821489-0-7, 4- 6 January 2009, Cairo, Egypt, p.1413-1417