Saito, Fumikazu. “9. Instruments of Magic and Science: Mediate Observation in De Tlescopio According to Giambattista Della Porta’s Perspectiva”. Circumscribere International Journal for the History of Science, vol. 4, Apr. 2008, pp. 104-5, https://revistas.pucsp.br/index.php/circumhc/article/view/723.