U-Boat Snorkel RAM (was: "Warplane" Documentary Starts This Week on PBS)

Pat Flannery wrote:
The Germans were playing around with RAM late in the war; they put a "waffle" patterned rubber coating on their U-boat snorkels, and were planing to make the Go-229 jet powered flying wing fighter out of plywood whose layers were held together with a charcoal impregnated glue for reduced radar signature.

Can anyone recommend some good references on the German anti-radar program? E.g., something that gives participants' names (Jaumann, et al.), techniques (Tarnmatte, etc.), and other details?

Thanks,

Paul
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