Gonçalves, Carlos Henrique Barbosa, y Zaqueu Vieira Oliveira. «Geometry, Reformation, and Counter Reformation in a Letter from Adriaan Von Roomen to Clavius (July 1st, 1597)». Circumscribere International Journal for the History of Science 3 (marzo 17, 2008): 11–19. Accedido diciembre 5, 2025. https://revistas.pucsp.br/index.php/circumhc/article/view/566.