*[http://www.dbonhoeffer.org/node/3 Bonhoeffer.org] A website dedicated to his memory describes his sacrifice
*[http://www.dbonhoeffer.org/node/3 Bonhoeffer.org] A website dedicated to his memory describes his sacrifice
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*[https://youtu.be/Mr7bPlp52FU The Theory of SOCIETAL STUPIDITY] | By Dietrich Bonhoeffer
*[http://www.plough.com/ebooks/thirdtestament.html A Third Testament: Free e-book about Christian saints, including Augustine, Kierkegaard, and Bonhoeffer]
*[http://www.plough.com/ebooks/thirdtestament.html A Third Testament: Free e-book about Christian saints, including Augustine, Kierkegaard, and Bonhoeffer]