Zhen Lei, ; Wang Tao, ; Xiangyu Zhu, ; Tianyu Fu, ; Li, Stan Z.: 'Countermeasures to face photo spoofing attacks by exploiting structure and texture information from rotated face sequences' (Security, 2017), 'Mobile Biometrics', Chap. 14, pp. 347-374, DOI: 10.1049/PBSE003E_ch14
IET Digital Library, https://digital-library.theiet.org/;jsessionid=cjw3kspkcjlm.x-iet-live-01content/books/10.1049/pbse003e_ch14