[edwest2]

I found the following on another message board:

Meyer, Bruno. Einsatz von Schlachtfliegeren
[Operation of ground attack pilots]
Ref. K113.3019-3.
HQ, USAF Historical Research Center,
Maxwell AFB, Alabama, March 24, 1953.


Kupfer, Ernst. Schlachtflieger, Panzerjagd und Storflugzeuge
in Jahre 1943 [Ground attack, antitank and nuisance aircraft
in the year of 1943].
Transcript of speech. Ref. K113.3019-3.
HQ, USAF Historical Research Center,
Maxwell AFB, Alabama, September 10, 1943. [1953, Ed.]


Maass, General. Die dem Heer im Kriege taktisch unterstellen
Verbande der Luftwaffe [German Air Force units tactically subordinate
to the army in war].
Ref. K113.836.
HQ, USAF Historical Research Center,
Maxwell AFB, Alabama, September 13, 1956.


Hitschold, Hubertus. Die Schlacht fliegerei in der Deutschen
Luftwaffe. [Ground attack in the German Air Force]
Ref. K113.3019-3.
HQ, USAF Historical Research Center,
Maxwell AFB, Alabama, February 12, 1957.


Galland, Adolf, and Hitschold, Hubertus. Entwicklung der
Schlachtflieger. [Development of ground attack]
Historical Analysis. Ref. K113.3019-3.
HQ, USAF Historical Research Center,
Maxwell AFB, Alabama, February 1, 1957.