1. The ammonia economy;Agosta,2003
2. Potential roles of ammonia in a hydrogen economy - a study of issues related to the use ammonia for on-board vehicular hydrogen storage;Thomas,2006
3. Hollinger T, Vandenbrook D, Schiltz M. Hydrogen and ammonia fuelled internal combustion engine. International patent # WO 2088/150901 A1, 2008.
4. Using ammonia as a sustainable fuel;Zamfirescu;Journal of Power Sources,2008
5. Demonstration of compression-ignition engine combustion using ammonia in reducing greenhouse gas emissions;Reiter;Energy & Fuels,2008