Thanks Guys
This became a much more interesting discussion than I thought initially.
Since the authors Smith,Creek and Hitchcock first published their expanded Monogram book in 1997 they could not have misinterpreted any memoir from Rumpelhardt published in 2002. Their (by now denied) story about Schnaufer crashing his Do 335 must have come from elsewhere.
Peter
Looks like I have to get the Classic Do 335 book after all

Never heard of a book before where an author denies writing it without taking any action against the publisher. I doubt you are talking about Mr Hitchcock...
Norbert
Again looks like I have to get the Classic book....
Cheers
Stig