Comes, Mercè. 2007. “Abū al‐Ṣalt: Umayya Ibn ʿAbd al‐ʿAzīz Ibn Abī al‐Ṣalt al‐Dānī al‐Andalusī”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 9-10. New York: Springer.

Yano, Michio. 2007. “Bīrūnī: Abū al‐Rayḥān Muḥammad Ibn Aḥmad al‐Bīrūnī”. In The Biographical Encyclopedia of Astronomers, ed. Thomas Hockey, 131-33. New York: Springer.

Forcada, Miquel. 2007. “Ibn Bājja: Abū Bakr Muḥammad Ibn Yaḥyā Ibn al‐Ṣāʾigh al‐Tujībī al‐Andalusī al‐Saraqusṭī”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 550-51. New York: Springer.

Forcada, Miquel. 2007. “Ibn Rushd: Abū al‐Walīd Muḥammad Ibn Aḥmad Ibn Muḥammad Ibn Rushd al‐Ḥafīd”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 564-65. New York: Springer.

Abattouy, Mohammed. 2007. “Isfizārī: Abū Ḥātim al‐Muẓaffar Ibn Ismāʿīl al‐Isfizārī”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 577-78. New York: Springer.

Calvo, Emilia. 2007. “Jābir Ibn Aflaḥ: Abū Muḥammad Jābir Ibn Aflaḥ”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 581-82. New York: Springer.

Hashemipour, Behnaz. 2007. “Khayyām: Ghiyāth al‐Dīn Abū al‐Fatḥ ʿUmar Ibn Ibrāhīm al‐Khayyāmī al‐Nīshāpūrī”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 627-28. New York: Springer.

Brentjes, Sonja. 2007. “Khwārizmī: Muḥammad Ibn Mūsā al‐Khwārizmī”. In The Biographical Encyclopedia of Astronomers, ed. Thomas Hockey, 1:631-33. New York: Springer.

Hashemipour, Behnaz. 2007. “Qaṭṭān al‐Marwazī: ʿAyn al‐Zamān Abū ʿAlī Ḥasan Ibn ʿAlī Qaṭṭān al‐Marwazī”. In The Biographical Encyclopedia of Astronomers, Springer Reference, ed. Thomas Hockey, 943-44. New York: Springer.

Puig, Roser. 2007. “Zarqālī: Abū Isḥāq Ibrāhīm Ibn Yaḥyā al‐Naqqāsh al‐Tujībī al‐Zarqālī”. In The Biographical Encyclopedia of Astronomers, ed. Thomas Hockey, 1258-60. New York: Springer.