| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Umts Signaling: Umts Interfaces, Protocols, Message Flows and Procedures Analyzed and Explained | 978-1-118-40860-5 | 2012 | Ralf Kreher | |
| UMTS Signaling: UMTS Interfaces, Protocols, Message Flows and Procedures Analyzed and Explained | 978-0-470-06533-4 | 2007 | " | |
| UMTS Signaling: UMTS Interfaces, Protocols, Message Flows and Procedures Analyzed and Explained | 978-0-470-01351-9 | 2005 | " | |
| UMTS UTRAN Signaling: Understand and Analyze UMTS UTRAN Message Flows and Procedures | 978-3-937343-13-6 | 2003 | Ralf Kreher · Juergen Placht |