1. Abbasov, F., 2018. Roadmap to decarbonising European shipping https://www.transportenvironment.org/publications/roadmap-decarbonising-european-shipping.
2. Ship Energy Efficiency Measures: Status and Guidance;ABS,2013
3. ABS, 2020. Ammonia as marine fuel. 0 American Bureau of Shipping (ABS) [Online]. Available: https://safety4sea.com/wp-content/uploads/2021/01/Ammonia_as_Marine_Fuel_Whitepaper_20188.pdf [Accessed 22 June 2022].
4. Revisiting port sustainability as a foundation for the implementation of the United Nations Sustainable Development Goals (UN SDGs);Alamoush;J. Ship. Trade,2021
5. Levelised cost of energy – A theoretical justification and critical assessment;Aldersey-Williams;Energy Policy,2019