1. W. Royce, Managing the development of large software systems: Concepts and techniques, in: Western Electric show and Convention Technical Papers, 1970.
2. ISO, Quality Systems: Model for Quality Assurance in Design/Development, Production, Installation and Servicing, ISO 9001, ISO, Geneva, Switzerland, 1987.
3. Software Process Improvement via ISO 9000? Results of Two Surveys among European Software Houses;Stelzer;Software Process: Improvement and Practice,1996
4. How ISO 9001 fits into the software world;Coallier;IEEE Software,1994
5. A critical look at ISO 9000 for software quality management;Stelzer;Software Quality Journal,1997