Ḥajjāj ibn Yūsuf ibn Maṭar

Reference works

• BEA

  Thomas Hockey et al. (eds.). The Biographical Encyclopedia of Astronomers, Springer Reference. New York: Springer, 2007.

• Wikipedia
• ENWC

  Helaine Selin (ed.). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. New York: Springer.

• ISMI

  Islamic Scientific Manuscripts Initiative

• BEA

  Thomas Hockey et al. (eds.). The Biographical Encyclopedia of Astronomers, Springer Reference. New York: Springer, 2007.