TY  - JOUR
A1  - Backs, Peter
A1  - Pohlmann, Norbert
T1  - Voice over IP aber sicher
T2  - IT-Sicherheit - Management und Praxis
Y1  - 2007
UR  - https://whge.opus.hbz-nrw.de/frontdoor/index/index/docId/1463
UR  - https://norbert-pohlmann.com/app/uploads/2015/08/208-Voice-over-IP-aber-sicher-Prof-Norbert-Pohlmann.pdf
IS  - 5
SP  - 18
EP  - 19
ER  -