Caijun Zhong, ; Xiaoming Chen, : 'Physical layer security for wirelessly powered communication systems' (Telecommunications, 2017), 'Trusted Communications with Physical Layer Security for 5G and Beyond', Chap. 9, pp. 199-225, DOI: 10.1049/PBTE076E_ch9
IET Digital Library, https://digital-library.theiet.org/;jsessionid=38peng0tp7m3m.x-iet-live-01content/books/10.1049/pbte076e_ch9