1. Abernathy, William J. (1978), The Productivity dilemma: Roadblock to Innovation in the Automobile Industry, Baltimore.
2. Adam, Dietrich (2001), Produktions-Management, 9. Aufl., Wiesbaden.
3. Arnold, Bernhard (2004), Strategische Lieferantenintegration, Wiesbaden.
4. Arrow, Kenneth Joseph (1969), The Organization of Economic Activity. Issues to the Choice of Market versus Non-market Allocation, in: The Analysis and Evaluation of Public Expenditures: The PBB-System, Joint Economic Committee, 91st Congress, 1st Session, Bd. 1, Washington.
5. Bain, Joe S. (1956), Barriers to New Competition, Cambridge, MA.