TY  - GEN
AU  - van den Oord,Ad
AU  - van Witteloostuijn,Arjen
TI  - The Population Ecology of Technology: An Empirical Study of US Biotechnology Patents from 1976 to 2003
SN  - 1932-6203
PY  - 2017///0824
KW  - Biotechnology
KW  - statistics & numerical data
KW  - Empirical Research
KW  - Models, Theoretical
KW  - Patents as Topic
KW  - United States
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1371/journal.pone.0169961
ER  -