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3. Alert! (2010). Design, build, maintain: The ultimate aim—always keep the human element in mind. The International Maritime Human Element Bulletin, 24(8). Retrieved from http://www.he-alert.org/
4. American Bureau of Shipping. (2003a). Guidance notes for the application of ergonomics to marine systems. Houston, TX: American Bureau of Shipping.
5. American Bureau of Shipping. (2003b). Guidance notes on ergonomic design of navigation bridges. Houston, TX: American Bureau of Shipping.