Retrieved 2012-12-10. ↑ "A Rocket Drive For Long Range Bombers by E. Saenger and J. Bredt, August 1944" (PDF). Retrieved 2012-12-10. ↑ Winter, Frank H; van der Linden, Robert (November 2007), "Out of the Past", Aerospace America, p. 39 ↑ Edgerton, David (2012), Britain's War Machine: Weapons, Resources, and Experts in the Second World War Penguin Books, ISBN 978-0141026107 (p. 42) ↑ Zaloga 2003, p. 3 ↑ "The V-2 ballistic missile".