@inproceedings{VahlB{\"o}hmerOestreich2009, author = {Vahl, Michael and B{\"o}hmer, Stefan and Oestreich, Thomas}, title = {Probability Based Risk Analysis for a VoIP System}, booktitle = {Fifth Advanced International Conference on Telecommunications, AICT '09. Venice, 24-28 May 2009}, isbn = {978-1-4244-3840-2}, doi = {10.1109/AICT.2009.79}, institution = {Fachbereich Informatik}, pages = {441 -- 446}, year = {2009}, language = {en} }