"Heinkel He 111, Part 1: The Early variants A-G and J of the Standard Bomber Aircraft of the Luftwaffe in World War II" (World War II Combat Aircraft Photo Archive ADC 004).
"Heinkel He 111, Part 1: The Early variants A-G and J of the Standard Bomber Aircraft of the Luftwaffe in World War II" (World War II Combat Aircraft Photo Archive ADC 004).