1. Fourth IMO GHG Study 2020: Full Report, London
https://wwwcdn.imo.org/localresources/en/OurWork/Environment/Documents/Fourth%20IMO%20GHG%20Study%202020%20-%20Full%20report%20and%20annexes.pdf
2. Review of Maritime Transport 2019, New York, United States of America
https://unctad.org/system/files/official-document/rmt2019_en.pdf
3. International Maritime Organization (IMO) Resolution MEPC.304(72) Initial IMO Strategy on Reduction of GHG Emissions from Ships: MEPC.304(72), 2018
https://wwwcdn.imo.org/localresources/en/KnowledgeCentre/IndexofIMOResolutions/MEPCDocuments/MEPC.304(72).pdf
4. Operating strategy for a hydrogen engine for improved drive-cycle efficiency and emissions behavior
5. International Maritime Organization (IMO) Guidelines for the Approval of Alternatives and Equivalents as Provided for in Various IMO Instruments: MSC.1/Circ.1455, 2013
https://puc.overheid.nl/nsi/doc/PUC_2017_14/1/