1. Audoin-Rouzeau, Stéphane. “Combat.” In A Companion to World War I, edited by JohnHorne, 173–87. Malden, MA and Oxford: Wiley Blackwell, 2010.
2. Bailey, Thomas A., and Paul B.Ryan. The Lusitania Disaster. An Episode in Modern Warfare and Diplomacy. New York and London: The Free Press, 1975.
3. Buxton, Earl. General Botha. London: John Murray, 1924.
4. The Ferreira Raid of 1906: Boers, Britons and Germans in Southern Africa in the Aftermath of the South African War