'Steady state applications' (Energy Engineering, 2003), 'Power Systems Electromagnetic Transients Simulation', Chap. 11, pp. 277-302, DOI: 10.1049/PBPO039E_ch11
IET Digital Library, https://digital-library.theiet.org/;jsessionid=ss5f69x731n7.x-iet-live-01content/books/10.1049/pbpo039e_ch11