Krebs, Gerhard: German-Japanese-US Mutual Perceptions and Diplomatic Initiatives over Mexico: New Perspectives on the Zimmermann Telegram, in: Schmidt, Jan / Schmidtpott, Katja (eds.): The East Asian Dimension of the First World War. Global Entanglements and Japan, China and Korea, 1914-1919, Frankfurt & New York 2020 Campus Verlag, pp. 247-270.