Voloshynovskiy, Svyatoslav; Holotyak, Taras; Diephuis, Maurits: 'Physical layer security: biometrics vs. physical objects' (Security, 2017), 'User-Centric Privacy and Security in Biometrics', Chap. 4, pp. 69-95, DOI: 10.1049/PBSE004E_ch4
IET Digital Library, https://digital-library.theiet.org/;jsessionid=i5k3ddrptj1f.x-iet-live-01content/books/10.1049/pbse004e_ch4