Garae, Jeffery; Ko, Ryan K.; Apperley, Mark: 'Security visualization for cloud computing: an overview' (Security, 2017), 'Data Security in Cloud Computing', Chap. 13, pp. 277-295, DOI: 10.1049/PBSE007E_ch13
IET Digital Library, https://digital-library.theiet.org/;jsessionid=e7p2bmglqa8i.x-iet-live-01content/books/10.1049/pbse007e_ch13