Hartung, Daniel; Ji-Young Lim, ; Utcke, Sven; Mull, Gùˆnther: 'Future trends in iris recognition: an industry perspective' (Security, 2017), 'Iris and Periocular Biometric Recognition', Chap. 20, pp. 439-463, DOI: 10.1049/PBSE005E_ch20 IET Digital Library, https://digital-library.theiet.org/;jsessionid=34l1i42lr6t9e.x-iet-live-01content/books/10.1049/pbse005e_ch20