Łącka, Monika, and Teresa Matthews‑Brzozowska. “A current Look at the Factors Influencing Face Variability”. Journal of Face Aesthetics 4, no. 2 (December 31, 2021): 128-134. Accessed May 17, 2022. http://jofa.ump.edu.pl/index.php/jofa/article/view/50.