1. D. Naujoks, Sicherheitsanalyse der W7-X Komponenten “internal documentation of W7-X: 1-NBF-V0005.3 [2016].
2. D. Naujoks, Bewertung von Ausfallszenarien der Anlage W7-X “internal documentation of W7-X: 1-NBF-T2007.2 [2014].
3. D.A. Hartmann, Sicherheitsanalyse der NBI für OP1.2“; internal documentation of W7-X: 1-CD-T0002 [2018].
4. Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels (IEC 61511-61513:2003 + Corrigendum 2004); German version EN 61511-61513:2004.
5. Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010); German version EN ISO 12100:2010.