Rivera, Sergio; Valencia, Tomas: 'Microgrids in Europe' (Energy Engineering, 2017), 'Clean Energy Microgrids', Chap. 8, pp. 259-282, DOI: 10.1049/PBPO090E_ch8 IET Digital Library, https://digital-library.theiet.org/;jsessionid=bc8grghji5tlb.x-iet-live-01content/books/10.1049/pbpo090e_ch8