↑Theodor Mahlmann: "Ecclesia semper reformanda". Eine historische Aufarbeitung. Neue Bearbeitung, in: Torbjörn Johansson, Robert Kolb, Johann Anselm Steiger (Hrsg.): Hermeneutica Sacra. Studien zur Auslegung der Heiligen Schrift im 16. und 17. Jahrhundert, Berlin - New York 2010, p. 382-441, here p. 384-388
↑Küng, The Catholic Church: A Short History (2002), Introduction, p. xviii: "In 1979 I then had personal experience of the Inquisition under another pope. My permission to teach was withdrawn by the church, but nevertheless I retained my chair and my institute (which was separated from the Catholic faculty). For two further decades I remained unswervingly faithful to my church in critical loyalty, and to the present day I have remained professor of ecumenical theology and a Catholic priest in good standing. I affirm the papacy for the Catholic Church, but at the same time indefatigably call for a radical reform of it in accordance with the criterion of the gospel."