Sharaf, A. M.; Gandoman, Foad H.; Khaki, Behnam: 'Active harmonic filters' (Energy Engineering, 2017), 'Power Quality in Future Electrical Power Systems', Chap. 4, pp. 131-163, DOI: 10.1049/PBPO092E_ch4
IET Digital Library, https://digital-library.theiet.org/;jsessionid=3k0nmk0xlj9ht.x-iet-live-01content/books/10.1049/pbpo092e_ch4