| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Competitive Telecommunications: How to Thrive Under the Telecommunications Act | 978-0-07-028113-4 (0-07-028113-0) | 1997 | Peter K. Heldman · Robert K. Heldman |
| The Telecommunications Information Millennium: A Vision and Plan for the Global Information Society | 978-0-07-028106-6 (0-07-028106-8) | 1995 | Robert K. Heldman |