ISBN 978-0-582-02530-1. ↑ Williamson (1991). ↑ Clark (2013), pp. 402-403. ↑ Ponting (2002), p. 72. ↑ Ponting (2002), p. 70. ↑ Ponting (2002), p. 73. ↑ Ponting (2002), p. 74. ↑ Clark (2013), pp. 449–450. ↑ Clark (2013), p. 486. ↑ Clark (2013), p. 475. ↑ Clark (2013), p. 480. ↑ Clark (2013), p. 463. ↑ Clark (2013), p. 466. ↑ Clark (2013), p. 509. ↑ Clark (2013), pp. 510-511. ↑ Clark (2013), p. 525. 1 2 3 Clark (2013), p. 544. ↑ Clark (2013), p. 545. ↑ Fischer, Fritz (1967). Germany's Aims in the First World War.