Ahmed, Khaled H.; Aboushady, Ahmed A.: 'Distributed generation systems' (Energy Engineering, 2017), 'Power Quality in Future Electrical Power Systems', Chap. 7, pp. 239-282, DOI: 10.1049/PBPO092E_ch7
IET Digital Library, https://digital-library.theiet.org/;jsessionid=gnggmu2u29q6.x-iet-live-01content/books/10.1049/pbpo092e_ch7