1. Abdalla, A. and Bitzer, B. (2005), “Innovation management methods and tools for sustainable product service systems (with a case study)”,The TRIZ Journal, pp. 1‐14.
2. Abdalla, A., Bitzer, B. and Morton, D. (2004), “Benchmarking TRIZ in the field of product service systems PSS”,Proceedings of TRIA World Conference TRIZ Future 2004, Florence, Italy, November 3‐5.
3. Development of an integrated product‐service roadmap with QFD
4. Life cycle oriented design of technical Product-Service Systems
5. The servitization of manufacturing