BIBLIOGRAPHY CONTRIBUTOR Bijan Vahabzadeh First name Bijan Last name Vahabzadeh Bibliography entries by this contributor Rashed, Roshdi, and Bijan Vahabzadeh. 2000. ʿOmar Khayyām, the Mathematician. New York; Winona Lake, IN: Bibliotheca Persica Press; Eisenbrauns. Vahabzadeh, Bijan. 1994. “Two Commentaries on Euclid’s Definition of Proportional Magnitudes”. Arabic Sciences and Philosophy 4 (1): 181-97.
