1. Hydrogen in the electricity value chain;van Gerwen,2019
2. Gassco. Research and Development. Accessed: Jun. 24, 2022. [Online]. Available: https://www.gassco.no/en/our-activities/research-and-development/.
3. On some remarkable changes produced in iron and steel by the action of hydrogen and acids;Johnson;Proc R Soc Lond,1875
4. 5L, specification for line pipe;Specification,2000
5. Nowick AS. Diffusion in solids: recent developments; 2012.