BIBLIOGRAPHY CONTRIBUTOR R.O. Besthorn First name R.O. Last name Besthorn Bibliography entries by this contributor Besthorn, R.O., and J.L. Heiberg, eds. 1893. Codex Leidensis 399,1. Euclidis Elementa Ex Interpretatione Al-Hadschdschadschii Cum Commentariis Al-Nairizii. 3 vol. Copenhagen: Gyldendel.
