Williams, L.: 'Flow motion power [hydroelectricity]', Engineering & Technology, 2016, 11, (10), p. 34-36, DOI: 10.1049/et.2016.1001
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1prfmww3ff39x.x-iet-live-01content/journals/10.1049/et.2016.1001