Albertini 1953, Vol III, p. 172, referencing Die Deutschen Dokumente zum Kriegsausbruch, Vol III, p. 562 Albertini, Luigi (1952–1953). Origins of the War of 1914. London: Oxford University Press. OCLC443476100.
Albertini 1953, Vol III, pp. 406–407, referencing Recouly p. 55 for the quote Albertini, Luigi (1952–1953). Origins of the War of 1914. London: Oxford University Press. OCLC443476100.
Rowe, Reginald (1920). A Concise Chronicle of Events of the Great War. London: Philip Allan and Co. p. 259. Retrieved 30 March 2020 – via Project Gutenberg. The text of the ultimatum describes a deadline of 5 o'clock, but it was shifted forward one hour owing to tardiness on the part of the Austro-Hungarian minister in Belgrade.
Kautsky 1924, Supplement IV, No 27, p. 635. Kautsky, Karl, ed. (1924). Outbreak of the World War: German Documents. Oxford University Press. OCLC1181368.
Kautsky 1924, Supplement IV, No 2, p. 617. Kautsky, Karl, ed. (1924). Outbreak of the World War: German Documents. Oxford University Press. OCLC1181368.
Albertini 1953, Vol III, p. 172, referencing Die Deutschen Dokumente zum Kriegsausbruch, Vol III, p. 562 Albertini, Luigi (1952–1953). Origins of the War of 1914. London: Oxford University Press. OCLC443476100.
Albertini 1953, Vol III, pp. 406–407, referencing Recouly p. 55 for the quote Albertini, Luigi (1952–1953). Origins of the War of 1914. London: Oxford University Press. OCLC443476100.