Inventive progress measured by multi-stage patent citation analysis
| Year of publication: |
2005
|
|---|---|
| Authors: | von Wartburg, Iwan ; Teichert, Thorsten ; Rost, Katja |
| Published in: |
Research Policy. - Elsevier, ISSN 0048-7333. - Vol. 34.2005, 10, p. 1591-1607
|
| Publisher: |
Elsevier |