Tolong jelaskan mengenai Bacaan tambahan dari Ignaz von Döllinger

Dalberg-Acton, John (1861). "Döllinger's 'History of Christianity'," The Rambler, Vol. IV, pp. 145–175.

Dalberg-Acton, John (1861). "Döllinger on the Temporal Power," The Rambler, Vol. VI, pp. 1–62.

Dalberg-Acton, John (1867). "Döllinger on Universities," The Chronicle, Vol. XIII, pp. 57–59.

Howard, Thomas Albert (2017). The Pope and the Professor: Pius IX, Ignaz von Dollinger, and the Quandary of the Modern Age. Oxford: Oxford University Press.

Marshall, Arthur F. (1890). "Dr. Döllinger and the 'Old Catholics'," The American Catholic Quarterly Review, Vol. XV, pp. 267–283.

Strauss, Gerald (1975). "Success and Failure in the German Reformation," Past & Present, No. 67, pp. 30–63.

Tonsor, S.J. (1959). "Ignaz von Döllinger: Lord Acton's Mentor," Anglican Theological Review, Vol. XLI, No. 2, pp. 211–215.

Tonsor, S.J. (1959). "Lord Acton on Döllinger's Historical Theology," Journal of the History of Ideas, Vol. XX, pp. 329–352.