'Reliability diagrams of MECs' (Energy Engineering, 2017), 'Wave and Tidal Generation Devices: Reliability and availability', Chap. appendixb, pp. 205-223, DOI: 10.1049/PBRN018E_appendixb
IET Digital Library, https://digital-library.theiet.org/;jsessionid=73g83mibdjs4d.x-iet-live-01content/books/10.1049/pbrn018e_appendixb