Moll, Helmut. “Becoming a Martyr in China: The Steyl Missionary Father Paul Buhl (1902-1944)”. International Journal of Sino-Western Studies 20 (July 14, 2021): 231–236. Accessed September 21, 2024. https://ojs.bdtopten.com/33015.eaapublishing/index.php/ijsws/article/view/119.