Tolong jelaskan mengenai Catatan dari Leopold von Ranke

Boldt, Andreas D. The Life and Work of the German Historian Leopold von Ranke (1795–1886): An Assessment of His Achievements (Edwin Mellen Press, 2015). 372pp

Bourne, Edward Gaylord (1896). "Leopold Von Ranke." The Sewanee Review, Vol. 4, No. 4, pp. 385–401.

Bourne, Edward Gaylord (1901). "Ranke and the Beginning of the Seminary Method in Teaching History." In: Essays in Historical Criticism. New York: Charles Scribner's Sons, pp. 265–274.