BONG, Y. S.; LEE, G. C. A Contactless Visitor Access Monitoring System. International Journal on Robotics, Automation and Sciences, [S. l.], v. 3, p. 34–42, 2021. DOI: 10.33093/ijoras.2021.3.6. Disponível em: https://journals.mmupress.com/index.php/ijoras/article/view/134. Acesso em: 22 nov. 2024.