Jaffe, A., & Trajtenberg, M. (1996). Flows of knowledge from universities and federal laboratories: Modeling the flow of patent citations over time and across institutional and geographic boundaries. The National Academy of Sciences of the USA.
Chicago ZitierstilJaffe, Adam B., und Manuel Trajtenberg. Flows of Knowledge From Universities and Federal Laboratories: Modeling the Flow of Patent Citations Over Time and Across Institutional and Geographic boundaries. The National Academy of Sciences of the USA, 1996.
MLA ZitierstilJaffe, Adam B., und Manuel Trajtenberg. Flows of Knowledge From Universities and Federal Laboratories: Modeling the Flow of Patent Citations Over Time and Across Institutional and Geographic boundaries. The National Academy of Sciences of the USA, 1996.