[1] Quoted in Alan Bullock, Hitler and Stalin: Parallel Lives, p. 744 + Robert Gellately, Lenin, Stalin and Hitler, p. 382 (underlining in General Halder’s original diary entry)
[2] Quoted in Alan Bullock, p. 759
[3] Quoted in Alan Bullock, p. 774
[4] Quotes from Alan Bullock, p.758