1. NASA. https://spinoff.nasa.gov/Spinoff2019/pdf/Spinoff508_2019.pdf. Accessed 1 Mar 2020
2. PortEconomics. https://www.porteconomics.eu/the-impact-of-emerging-digital-technologies-on-logistics-centres-business-models/. Accessed 22 Mar 2020
3. Shah, S.: https://www.ft.com/content/12bea95d-2171-4619-a483-1cf7ec306be9. Accessed 12 Apr 2020
4. Hastie, H.: https://www.smh.com.au/business/companies/no-more-training-wheels-rio-tinto-launches-world-s-biggest-robot-20190614-p51xxj.html. Accessed 15 Mar 2020
5. Paris, C.: https://www.wsj.com/articles/rules-for-robot-cargo-ships-could-be-years-away-regulator-says-11559843777. Accessed 20 Nov 2019