ISBN 978-0-307-56762-8. ↑ Zuber (2011), pp. 95–97, 116–133. ↑ Zuber (2011), pp. 116–131. ↑ Holmes (2014), pp. 194, 211. ↑ Holmes (2014), p. 213. ↑ Stevenson, David. The Military History of the First World War: An Overview and Analysis. Gresham College Lecture – via YouTube. ↑ "World War One: 10 interpretations of who started WW1".