1. Aviation Benefits Report 2019;International Civil Aviation Organization Industry High Level Group,2019
2. Efficiency Trends for New Commercial Jet Aircraft, 1960 to 2008;Rutherford,2009
3. The contribution of global aviation to anthropogenic climate forcing for 2000 to 2018;Lee;Atmos. Environ.,2021
4. Liquid Hydrogen As a Propulsion Fuel, 1945–1959;Sloop,1978
5. Liquid hydrogen as a jet fuel for high-altitude aircraft;Silverstein,1955