Rollo-Koster, Joëlle. “Deposing Popes and Kings: The Praxis of Tyranny During the Great Western Schism (1378–1417)”. Acta Mediaevalia. Series Nova 1 (December 13, 2024): 13–37. Accessed April 10, 2025. https://czasopisma.kul.pl/index.php/amsn/article/view/17493.