Masouros, Christos; Garcia-Rodriguez, Adrian: 'Large-scale antenna systems' (Telecommunications, 2017), '5G Wireless Technologies', Chap. 4, pp. 105-145, DOI: 10.1049/PBTE069E_ch4 IET Digital Library, https://digital-library.theiet.org/;jsessionid=1twjli3rq41m2.x-iet-live-01content/books/10.1049/pbte069e_ch4