| |
| 1986 | ||
|---|---|---|
| 3 | Rolf Rüggeberg: The Development of the Telematic Services in the ISDN. ICCC 1986: 39-43 | |
| 2 | Rolf Rüggeberg: The Work of CCITT in the Field of Telematic Services. Networking in Open Systems 1986: 1-26 | |
| 1981 | ||
| 1 | Rolf Rüggeberg: Was ist Teletex? Elektronische Rechenanlagen 23(6): 269-273 (1981) | |