Keithly, David M. "Black Cross, Green Crescent, Black Gold: The Drive to the Indus"
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 "Cruz Negra, Media Luna y Oro Negro", in Hitler triunfante. Historia alternativa de la Segunda Guerra Mundial, (ed. Peter G. Tsouras), q.v.