Maxime Kowalewsky: Die ökonomische Entwicklung Europas bis zum Beginn der kapitalistischen Wirtschaftsform. Aus dem Russischen überstezt von A. Stein. Vol. vi, 1913, pp. 51 ff.
J. B. Bury: A History of Freedom of Thought. 1913.
G. L. Burr: "Anent the Middle Ages," American Historical Review, 1913.
Burr: "The Freedom of History," American Historical Review, Jan. 1917.
W. J. Ashley: Economic Organization of England, 1914, pp. 64 ff.
A. Elkan: "Entstehung und Entwicklung des Begriffs 'Gegenreformation,'" Historische Zeitschrift, cxii, pp. 473-93, 1914.
E. M. Hulme: The Renaissance, the Protestant Revolution and the
Catholic Reformation. 1914. (Second ed. 1915).
G. Wolf: Quellenkunde der deutschen Reformationsgeschichte, 2 vols. 1915, 1916.
A. E. Harvey: "Economic Self-interest in the German Anti-clericalism of the 15th and 16th Centuries," American Journal of Theology, 1915.
Harvey: "Economic Aspects of the Reformation," Lutheran Survey, Aug. 1, 1917, pp. 459-64.