Bonhoeffer and the Conspiracy - Oxford Handbooks
https://www.oxfordhandbooks.com/view/10.1093/oxfordhb/9780198753179.001.0001/oxfordhb-9780198753179-e-1
https://www.oxfordhandbooks.com/view/10.1093/oxfordhb/9780198753179.001.0001/oxfordhb-9780198753179-e-1