Haddad, Thomás A. S., and Carlos H. B. Gonçalves. “3. Some Remarks on Jesuitical Sources for the History of Astronomy”. Circumscribere International Journal for the History of Science, vol. 4, Apr. 2008, pp. 51-58, https://revistas.pucsp.br/index.php/circumhc/article/view/741.