VDI/VDE 2180 Blatt 4-1996 Safeguarding of industrial processing plants by means of process control engineering - Calculating methods for reliability characteristics of safety facilities
Sicherung von Anlagen der Verfahrenstechnik mit Mitteln der Prozessleittechnik - Berechnungsmethoden fuer Zuverlaessigkeitskenngroessen von PLT-Schutzeinrichtungen
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