1. President's Information Technology Advisory Committee, “Information Technology Research: Investing in Our Future, Report to the President”, February 1999.
2. “ISO 9000 revisions”, ISO News, Vol. 8, No. 3, May/June 1999.
3. W.S. Humphrey, “Managing the software process”, Addison-Wesley, 1989.
4. “ISO/IEC TR 15504:1998 Information technology-Software process assessment-Parts 1–9”, International Organisation for Standardisation, 1998.
5. R. Conradi, A. Fuggetta, M.L. Jaccheri, “Six Thesis on Software Process Research”, Proceedings of the 6 th European Workshop on Software Process Technology, LNCS 1487, Springer Verlag, 1998.