Neal, Tempestt J.; Woodard, Damon L.; Striegel, Aaron D.: 'Mobile device usage data as behavioral biometrics' (Security, 2017), 'Mobile Biometrics', Chap. 7, pp. 177-207, DOI: 10.1049/PBSE003E_ch7
IET Digital Library, https://digital-library.theiet.org/;jsessionid=2n6aqlft7vbrf.x-iet-live-01content/books/10.1049/pbse003e_ch7