1. Alexander, I.F. (1997), “A historical perspective on requirements engineering”,Requirenautics Quarterly: The Newsletter of the Requirements Engineering, Vol. 12 No. 3, pp. 13‐21.
2. Bangemann, T., Reboul, D., Szymanski, J., Thomesse, J.‐P. and Zerhouni, N. (2004), “PROTEUS – an integration platform for distributed maintenance systems”,Proceedings of the Intelligent Maintenance Systems( IMS )2004 International Conference, Arles, 15‐17 July.
3. PROTEUS—Creating distributed maintenance systems through an integration platform
4. Candell, O. and Karim, R. (2008), “eMaintenance – information driven maintenance and support”,Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing( FAIM 2008 ), Skövde, 30 June.
5. Candell, O. and Söderholm, P. (2006), “A customer and product support perspective of e‐Maintenance”,Proceedings of the 19th International Congress of Condition Monitoring & Diagnostic Engineering Management( COMADEM ), Luleå, 12‐15 June, pp. 243‐52.