de Pádua Magalhães, A. (2008) “Electric matter and magnetic form: experiments and conceptions of William Gilbert in De Magnete”, Circumscribere International Journal for the History of Science, 2, pp. 73–74. Available at: https://revistas.pucsp.br/index.php/circumhc/article/view/578 (Accessed: 5 December 2025).