It just came out yesterday, and it's about how the experiences of the members of the White Rose on the Eastern front influenced a change in their approaches between leaflets #4 and #5.
Here is a link to it on
Amazon.de (Yes, it's in German.)
Anyway, here's the title:
Die Weiße Rose. Von der Front in den Widerstand.
And the author is
Detlef Bald
Am I bordering on obsession here?