1. Climate change and flying: what share of global CO2 emissions come from aviation?;Ritchie;Our World in Data,2020
2. Sustainability in aerospace: exploring alternative fuels;Domone,2020
3. CO2 emissions from commercial aviation;Graver,2018
4. Hepperle, Martin, “Electric flight - potential and limitations,” German Aerospace Center, Institute of Aerodynamics and Flow Technology, Lilenthalplatz.
5. Decarbonising aviation;Shell,2021