MAGER, Mathis. Secularization as an Institutional Challenge – the General Chapter of the Order of St. John in Viterbo (1527). Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders. Online. 19 October 2017. Vol. 22, pp. 109-121. [Accessed 25 June 2025]. DOI 10.12775/OM.2017.005.