Groom 2002, p. 167; Edmonds 1991, pp. 54–55. Groom, W. (2002). A Storm in Flanders, the Ypres Salient, 1914–1918. New York: Atlantic Monthly Press. ISBN978-0-87113-842-2 – via Archive Foundation. Edmonds, J. E. (1991) [1948]. Military Operations France and Belgium, 1917: 7 June – 10 November: Messines and Third Ypres (Passchendaele). History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II (Imperial War Museum and Battery Press ed.). London: HMSO. ISBN978-0-89839-166-4.
Edmonds 1991, p. 88; McRandle & Quirk 2006, pp. 667–701; Liddle 1997, p. 481. Edmonds, J. E. (1991) [1948]. Military Operations France and Belgium, 1917: 7 June – 10 November: Messines and Third Ypres (Passchendaele). History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II (Imperial War Museum and Battery Press ed.). London: HMSO. ISBN978-0-89839-166-4. McRandle, J. H.; Quirk, J. (July 2006). "The Blood Test Revisited: A New Look at German Casualty Counts in World War I". The Journal of Military History. 70 (3). Lexington, VA: 667–701. doi:10.1353/jmh.2006.0180. ISSN1543-7795. S2CID159930725. Liddle, P. H., ed. (1997). Passchendaele in Perspective: The Third Battle of Ypres. Barnsley: Pen & Sword. ISBN0-85052-588-8.
Edmonds 1991, p. 88; McRandle & Quirk 2006, pp. 667–701; Liddle 1997, p. 481. Edmonds, J. E. (1991) [1948]. Military Operations France and Belgium, 1917: 7 June – 10 November: Messines and Third Ypres (Passchendaele). History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II (Imperial War Museum and Battery Press ed.). London: HMSO. ISBN978-0-89839-166-4. McRandle, J. H.; Quirk, J. (July 2006). "The Blood Test Revisited: A New Look at German Casualty Counts in World War I". The Journal of Military History. 70 (3). Lexington, VA: 667–701. doi:10.1353/jmh.2006.0180. ISSN1543-7795. S2CID159930725. Liddle, P. H., ed. (1997). Passchendaele in Perspective: The Third Battle of Ypres. Barnsley: Pen & Sword. ISBN0-85052-588-8.
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Edmonds 1925, pp. 128–129. Edmonds, J. E. (1925). Military Operations France and Belgium, 1914: Antwerp, La Bassée, Armentières, Messines and Ypres October–November 1914. History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II. London: Macmillan. OCLC220044986.
Edmonds 1925, pp. 129–131. Edmonds, J. E. (1925). Military Operations France and Belgium, 1914: Antwerp, La Bassée, Armentières, Messines and Ypres October–November 1914. History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II. London: Macmillan. OCLC220044986.
Bülow & Kranz 1943, pp. 103–104. Bülow, K. von; Kranz, W.; Sonne, E.; Burre, O.; Dienemann, W. (1943) [1938]. Wehrgeologie [Military Geology] (Engineer Research Office, New York ed.). Leipzig: Quelle & Meyer. OCLC44818243.
Sanitätsbericht 1934, p. 53. Sanitätsbericht über des Deutschen Heeres im Weltkrieg 1914–1918 Band III Die Krankenbewegung bei den Deutschen Feld- und Besatsungheer [Medical Services of the German Army during the World War 1914–1918: Transport of Casualties about the German Field and Garrison Armies]. Vol. III. Berlin: Verlag Ernst Siegfried Mittler und Sohn. 1934. OCLC312555581.
Edmonds 1991, p. 88; McRandle & Quirk 2006, pp. 667–701; Liddle 1997, p. 481. Edmonds, J. E. (1991) [1948]. Military Operations France and Belgium, 1917: 7 June – 10 November: Messines and Third Ypres (Passchendaele). History of the Great War Based on Official Documents by Direction of the Historical Section of the Committee of Imperial Defence. Vol. II (Imperial War Museum and Battery Press ed.). London: HMSO. ISBN978-0-89839-166-4. McRandle, J. H.; Quirk, J. (July 2006). "The Blood Test Revisited: A New Look at German Casualty Counts in World War I". The Journal of Military History. 70 (3). Lexington, VA: 667–701. doi:10.1353/jmh.2006.0180. ISSN1543-7795. S2CID159930725. Liddle, P. H., ed. (1997). Passchendaele in Perspective: The Third Battle of Ypres. Barnsley: Pen & Sword. ISBN0-85052-588-8.