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Olson Lanjouw, Jean and Schankerman, Mark (2002) Research productivity and patent quality: measurement with multiple indicators. STICERD Discussion Paper (EI/32). Suntory and Toyota International Centres for Economics and Related Disciplines, London, UK.
Olson Lanjouw, Jean and Schankerman, Mark (2001) Enforcing intellectual property rights. . Suntory and Toyota International Centres for Economics and Related Disciplines, London, UK.
Olson Lanjouw, Jean and Schankerman, Mark (2001) Enforcing intellectual property rights. . National Bureau of Economic Research, Cambridge, MA., USA.
Olson Lanjouw, Jean and Schankerman, Mark (1998) Stylised fact of patent litigation: value, scope and ownership. . Suntory and Toyota International Centres for Economics and Related Disciplines, London, UK.