Notably, Richard King refers to Fiedler’s book in his, actually, there is a whole section at the end of King’s book that discusses Fiedler’s work chapter by chapter.
On the other hand, the new edition of Arkady Fiedler’s “303 Squadron” by Aquila Polonica has a lot of additional material that puts the original text in right perspective and describes the events and pilots portrayed by Fiedler.