Grey-blue and olive-grey versions of the Tropenhelm, Tropenrock, lang & kurz Tropenhose, Tropen-Schnürschuhe and Tropen-Schnürstiefel (though apparently not the Tropenfliegermütze or Überfallhose) were produced for service in hot but non-desert climates, and were common in the southern Russian and Italian theatres. Photographed near Stalingrad in summer 1942, this Feldwebel from JG 77 wears the grey-blue version of the Tropenrock.
Angolia, John & Adolf Schlicht, original documents quoted in Uniforms & Traditions of the Luftwaffe, vols I–III (California, 1996–98)
Argyle, Christopher, Chronology of World War II, (London, 1980)
McGuirk, Dal, Rommel’s Army in Africa, (London, 1987)
Price, Alfred, numerous titles
Shvanyebakh, B.E., Rukovodstvo po Nemyetskomu Voennomu Perevodu, (Moscow, 1943)
Tschoeltsch, Generalmajor Ehrenfried, Der Dienst-Unterricht in der Luftwaffe, (Berlin, 1941)
British War Office & US War Department publications, various.