Gomez-Barrero, Marta; Galbally, Javier: 'Software attacks on iris recognition systems' (Security, 2017), 'Iris and Periocular Biometric Recognition', Chap. 13, pp. 291-315, DOI: 10.1049/PBSE005E_ch13
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1dlku9lwo0pc0.x-iet-live-01content/books/10.1049/pbse005e_ch13