Griffith, Paddy. "Wings Over the Caucasus: Operation LEONARDO"
Published: In Hitler Triumphant: Alternate Decisions of World War II (ed. Peter G. Tsouras), q.v.
Original in: English.
Translation: Spanish by Diana Delgado as "Alas sobrevolando el Cáucaso", in Hitler triunfante. Historia alternativa de la Segunda Guerra Mundial, (ed. Peter G. Tsouras), q.v.