'Reliability prediction method for wave and tidal devices' (Energy Engineering, 2017), 'Wave and Tidal Generation Devices: Reliability and availability', Chap. 4, pp. 89-100, DOI: 10.1049/PBRN018E_ch4 IET Digital Library, https://digital-library.theiet.org/;jsessionid=40e6er0blgb.x-iet-live-01content/books/10.1049/pbrn018e_ch4