BIBLIOGRAPHY CONTRIBUTOR Reuven Avi-Yonah First name Reuven Last name Avi-Yonah Bibliography entries by this contributor Avi-Yonah, Reuven. 1985. “Ptolemy Vs. Al‐Biṭrūjī: A Study Of Scientific Decision-Making In The Middle Ages”. Archives Internationales D'histoire Des Sciences 35: 124-147.