The role of product architecture in the manufacturing firm Karl Ulrich Research Policy 1995 24(3), 419-440
Managing product families: The case of the Sony Walkman Susan Sanderson; Mustafa Uzumeri Research Policy 1995 24(5), 761-782
On the sources and significance of interindustry differences in technological opportunities Alvin K. Klevorick; Richard C. Levin; Richard R. Nelson; Sidney G. Winter Research Policy 1995 24(2), 185-205