Matinmikko, Marja; Yrjola, Seppo; Mustonen, Miia; Ahokangas, Petri; Horneman, Kari: 'Licensed shared access (LSA) and three-tier spectrum sharing models: regulation, business and technology perspectives' (Telecommunications, 2017), '5G Wireless Technologies', Chap. 11, pp. 363-388, DOI: 10.1049/PBTE069E_ch11
IET Digital Library, https://digital-library.theiet.org/;jsessionid=7irlqi6ocjtm5.x-iet-live-01content/books/10.1049/pbte069e_ch11