Nicolas, Joël; Robert, Gérard: 'Dynamic simulation issues for hydropower generation control' (Energy Engineering, 2017), 'Modeling and Dynamic Behaviour of Hydropower Plants', Chap. 5, pp. 105-129, DOI: 10.1049/PBPO100E_ch5
IET Digital Library, https://digital-library.theiet.org/;jsessionid=67mojm5ur18j3.x-iet-live-01content/books/10.1049/pbpo100e_ch5