BECKER, G. K. Spiritual Leadership In Hard Times: Karl Rahner And Alfred Delp. The Journal of the Macau Ricci Institute, [S. l.], v. 6, p. 90–100, 2020. Disponível em: https://journals.usj.edu.mo/index.php/mrijournal/article/view/126. Acesso em: 22 jan. 2025.