Ivanovas, E., and D. Navakauskas. “Development of Biometric Systems for Person Recognition: Biometric Feature Systems, Traits and Acquisition”. Elektronika ir Elektrotechnika 101, no. 5 (April 27, 2010): 87-90. Accessed September 27, 2022. https://eejournal.ktu.lt/index.php/elt/article/view/9440.