1. Toward a Science of Service Systems. In: Kieliszewski, Maglio P, Spohrer J. Handbook of service science;Spohrer,2010
2. Konfigurierbares Vorgehensmodell für die exportorientierte Entwicklung von technischen Dienstleistungen;Freitag,2014
3. Service Engineering internationaler Dienstleistungen;Spath,2010
4. Freitag M, Ganz W. InnoScore® service. Evaluating innovation for product-related services. In: Service Research & Innovation Institute (Eds): Annual SRII global conference (SRII) 2011, March 29, 2011 - April 2, 2011, San Jose, California, USA ; proceedings, IEEE, Piscataway, NJ, 214–221.
5. Applying Value Proposition Design for Developing Smart Service Business Models in Manufacturing Firms. In: Freund L., Cellary W. (Eds) Advances in The Human Side of Service Engineering. AHFE 2017. Advances in Intelligent Systems and Computing, vol 601.;Neuhüttler,2018