ALPHONSE, A. S. Fan-Beam Projection-Based Feature Extraction for Facial Expression Recognition. Digital Technologies Research and Applications, [S. l.], v. 1, n. 1, p. 2–5, 2022. DOI: 10.54963/dtra.v1i1.31. Disponível em: http://ojs.ukscip.com/index.php/dtra/article/view/31. Acesso em: 20 aug. 2025.