Dutch martyr in China and pioneering missionary up for canonisation | SundayExaminer. sundayex.catholic.org.hk. [2017-01-13]. (原始内容存档于2017-01-16). Tokyo
Dutch martyr in China and pioneering missionary up for canonisation | SundayExaminer. sundayex.catholic.org.hk. [2019-09-15]. (原始内容存档于2017-01-16). Lottum