'Appendix A: A tidal poem' (Energy Engineering, 2017), 'Wave and Tidal Generation Devices: Reliability and availability', Chap. appendixa, pp. 201-203, DOI: 10.1049/PBRN018E_appendixa
IET Digital Library, https://digital-library.theiet.org/;jsessionid=g722bt7t1o29.x-iet-live-01content/books/10.1049/pbrn018e_appendixa