Korshunov, Pavel; Marcel, Sébastien: 'Presentation attack detection in voice biometrics' (Security, 2017), 'User-Centric Privacy and Security in Biometrics', Chap. 10, pp. 217-236, DOI: 10.1049/PBSE004E_ch10
IET Digital Library, https://digital-library.theiet.org/;jsessionid=lr3qcn0p226e.x-iet-live-01content/books/10.1049/pbse004e_ch10