Full reference OpenMind biblio ref
Comes, Mercè, Roser Puig, and Julio Samsó. 1987. De Astronomia Alphonsi Regis. Proceedings Of The Symposium On Alphonsine Astronomy Held At Berkeley, California, August 1985, Together With Other Papers On The Same Subject. Barcelona: Instituto "Millás Vallicrosa" de historia de la ciencia árabe.
{ Mercè Comes, Roser Puig, Julio Samsó, 1987 #471 }