Weijia Yang, ; Jiandong Yang, ; Wencheng Guo, ; Norrlund, Per: 'Time-domain modeling and a case study on regulation and operation of hydropower plants' (Energy Engineering, 2017), 'Modeling and Dynamic Behaviour of Hydropower Plants', Chap. 2, pp. 19-48, DOI: 10.1049/PBPO100E_ch2
IET Digital Library, https://digital-library.theiet.org/;jsessionid=kxg3opsv1x36.x-iet-live-01content/books/10.1049/pbpo100e_ch2