1. Options for Air Craft Engine Fire Protection;Borghhetti,2000
2. The importance of the Montreal Protocol in protecting climate;Vlders;Proc. Natl. Acad. Sci. USA,2007
3. UN environment programme, The montreal protocol on substances that deplete the ozone layer, https://ozone.unep.org/treaties/montreal-protocol.
4. Halon Replacement Program for Aviation Aircraft Engine Nacelle Application - Phase I - Operation Parameters Study;Kollack,1997
5. Halon Replacement Program for Aviation Aircraft Engine Nacelle Application - Phase II - Operational Comparison of Selected Extinguish;Bennett,1997