Describe history of war ( German Resistance to Hitler )

It is an English class but it is about history of war ( German Resistance to Hitler )
It has to be related to the world war 2.
6 sources are required but 3 of them has to be these
Paxton, Robert O. “Towards A New History Of German Resistance To Hitler.” Central European History (Brill Academic Publishers) 14.4 (1981): 369. Academic Search Complete. Web. 7 Apr. 2016.

Foot, M. R. D.. The English Historical Review 114.456 (1999): 505–505. Web…

Vincent, C. P. (2011). Behind valkyrie: German resistance to hitler: Documents. Choice, 49(3), 476. Retrieved from http://ezproxy.snhu.edu/login?url=http://search.proquest.com.ezproxy.snhu.edu/docview/904160401?accountid=3783
You can find the other 3 , thank you