The changing composition of innovative activity in the US -- a portrait based on patent analysis
| Year of publication: |
2001
|
|---|---|
| Authors: | Hicks, Diana ; Breitzman, Tony ; Olivastro, Dominic ; Hamilton, Kimberly |
| Published in: |
Research Policy. - Elsevier, ISSN 0048-7333. - Vol. 30.2001, 4, p. 681-703
|
| Publisher: |
Elsevier |