Dietrich. "U-123." New Georgia Encyclopedia (Project). 1942, https://www.georgiaencyclopedia.org/articles/history-archaeology/u-boat-attacks-during-world-war-ii/lorient-einlaufen-von-u-123/.

Dietrich (1942). U-123. Retrieved from https://www.georgiaencyclopedia.org/articles/history-archaeology/u-boat-attacks-during-world-war-ii/lorient-einlaufen-von-u-123/

Dietrich. "U-123." 1942. June 1, 2026. https://www.georgiaencyclopedia.org/articles/history-archaeology/u-boat-attacks-during-world-war-ii/lorient-einlaufen-von-u-123/.