1. Bonaccorsi, A., 1997. The external and internal integration of resources: evidence from a survey on procurement practices of medium and large manufacturing firms. Sixth IPSERA Conference. Naples, 24–27 March.
2. Strategic partnership in new product development;Bonaccorsi;The Journal of Product Innovation Management,1994
3. Camuffo, A., Volpato, G. (Eds.), 1997. Nuove Forme Di Integrazione Operativa: Il Caso Della Componentistica Automobilistica. Franco Angeli, Milano, pp. 154–156.
4. Clark K.B., Fujimoto, T. (Eds.), 1991. Product Development Performance. Harvard Business School Press, Boston.
5. A managerial guideline for the development and implementation of purchasing partnership;Ellram;International Journal of Purchasing and Materials Management,1991