Maritta Heisel Peter Liggesmeyer Stefan Wittmann Computer Safety, Reliability, and Security, 23rd International Conference, SAFECOMP 2004, Potsdam, Germany, September 21-24, 2004, Proceedings SAFECOMP Lecture Notes in Computer Science 3219 Springer 2004 3-540-23176-5 db/conf/safecomp/safecomp2004.html