| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Global Positioning System: An Overview: Edinburgh, Scotland, August 7-8, 1989 | 978-0-387-97266-4 (0-387-97266-8) | 1990 | ||
| International Association of Geodesy: Global Positioning Systems: An Overview: Symposium Proceedings | 978-3-540-97266-2 (3-540-97266-8) | 1990 | Norman Leppard | |