1. Electrostatic charging of carbon dioxide;Heidelberg;Arbeitsschutz, Fachteil des Bundesarbeitsblattes,1958
2. Ignition hazards due to electrostatically charged CO2 clouds;Heidelberg,1958
3. Electrostatic hazards produced by carbon dioxide in inerting and fire extinguishing systems;Leonard;U.S. Naval Research Laboratory Report 7920,1975