| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Indicators of the Scientific Base of European Patents | 978-92-826-6734-7 (92-826-6734-0) | 1994 | E. Strauss · H. Grupp |
| Patents as Indicators of the Utility of European Community R & D Programmes | 978-92-826-2689-4 (92-826-2689-X) | 1991 | |