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2. Internationale Vereinigung für Sociale Sicherheit (IVSS), Gas explosions: Compendium for the industrial practice, IVSS, Sektion Chemie, Heidelberg, Germany, 1986.
3. IEC 31 H (CO) 4, Method for determining the minimum ignition temperature for dusts. Part 2: Dust cloud in a furnace at constant temperature, International Electrotechnical Commission, Ann Arbor, MI, 1984.
4. Explosionsschutz, Grundlagen und Anwendungen, Springer-Verlag, Berlin, 1993.