| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Communications Policy in Europe: Proceedings of the 4th Annual Communications Policy Research Conference, Held at Kronberg, Frg, October 25-27, 1989 | 978-0-387-52875-5 (0-387-52875-X) | 1990 | ||
| Communications Policy in Europe: Proceedings Of The 4Th Annual Communications Policy Research Conference, Held At Kronberg, Frg, October 25-27, 1989 | 978-3-540-52875-3 (3-540-52875-X) | 1990 | Karl-Heinz Neumann | |