A Study of Innovation in the Pesticide Industry : Analysis of the Innovation Record of an Industrial Sector, Research Policy, p.16, 1987. ,
From Theory to a New Financial Product, Journal of Finance, 1974. ,
Les services au coeur de l'économie relationnelle, Revue d'économie industrielle, pp.48-49, 1988. ,
Developing and Implementing New Services, Proceedings Series, 1984. ,
The Influence of Market Demand upon Innovation : a Critical Review of some Recent Empirical Studies, Research Policy, vol.8, 1979. ,
A Conceptual Model of Service Quality and its Implications for Future Research, Journal of Marketing, 1985. ,
Une approche cognitive des facteurs de réussite des nouveaux produits, Recherche et Applications en Marketing, vol.VI, p.4, 1991. ,