Mathematical intelligencer. 2012;34(2):68-70. doi: 10.1007/s00283-012-9283-2 Q40.42025
The Abacus and the Cross: The Story of the Pope Who Brought the Light of Science to the Dark Agesby Nancy Marie Brown
算盘与十字架：将科学之光带入黑暗时代的教皇的故事南希·玛丽·布朗
DOI: 10.1007/s00283-012-9283-2
摘要 查看摘要
