P945Lb Price, Alfred. Pictorial History of the Luftwaffe . Osceola, WI, Motorbooks International, 1991. The Battle of Britain, pp 42-54. The Night Blitz, and After the Battle of Britain, pp 55-60.
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Pictorial History of the Luftwaffe, 1993-1945 . New York, Arco Pub. Appendix A. Operational Command of the Luftwaffe, pp 61-62. Appendix B. Wartime Production of the More Important German Combat Aircraft, by Type, p 63. Appendix C. Equivalent Commissioned Ranks, p 64.