Van-Dinh Nguyen, ; Duong, Trung Q.; Oh-Soon Shin, : 'Physical layer security for cognitive radio networks' (Telecommunications, 2017), 'Trusted Communications with Physical Layer Security for 5G and Beyond', Chap. 11, pp. 253-283, DOI: 10.1049/PBTE076E_ch11
IET Digital Library, https://digital-library.theiet.org/;jsessionid=f01tr91i1sc5.x-iet-live-01content/books/10.1049/pbte076e_ch11