Lanjouw, J. O., & Schankerman, M. (1999). The quality of ideas: Measuring innovation with multiple indicators. National Bureau of Economic Research.
Citace podle Chicago (17th ed.)Lanjouw, Jean O., a Mark Schankerman. The Quality of Ideas: Measuring Innovation with Multiple Indicators. Cambridge: National Bureau of Economic Research, 1999.
Citace podle MLA (9th ed.)Lanjouw, Jean O., a Mark Schankerman. The Quality of Ideas: Measuring Innovation with Multiple Indicators. National Bureau of Economic Research, 1999.
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