KAUFMAN, . Gabriel’s Horn and the Painter’s Paradox in Perspective. Ohio Journal of School Mathematics, [S. l.], v. 94, n. 1, p. 1–5, 2023. Disponível em: http://voyager.janeway.systems:9999/index.php/OJSM/article/view/9483. Acesso em: 7 nov. 2026.