'MEC reliability data collection based on wind experience' (Energy Engineering, 2017), 'Wave and Tidal Generation Devices: Reliability and availability', Chap. appendixc, pp. 225-235, DOI: 10.1049/PBRN018E_appendixc
IET Digital Library, https://digital-library.theiet.org/;jsessionid=bgg4bd3n2ldt6.x-iet-live-01content/books/10.1049/pbrn018e_appendixc