Griliches, Z., Pakes, A., & Hall, B. H. (1986). The value of patents as indicators of inventive activity. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Griliches, Zvi, Ariel Pakes, und Bronwyn H. Hall. The Value of Patents as Indicators of Inventive Activity. Cambridge, Mass: National Bureau of Economic Research, 1986.
MLA-Zitierstil (9. Ausg.)Griliches, Zvi, et al. The Value of Patents as Indicators of Inventive Activity. National Bureau of Economic Research, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.