'Power-flow calculation' (Energy Engineering, 2018), 'Metaheuristic Optimization in Power Engineering', Chap. 5, pp. 155-176, DOI: 10.1049/PBPO131E_ch5
IET Digital Library, https://digital-library.theiet.org/;jsessionid=lacil1ydx04o.x-iet-live-01content/books/10.1049/pbpo131e_ch5