Analysis of information sources in references of the Wikipedia article "إبراهيم بن يحيى الزرقالي" in Arabic language version.
{{استشهاد ويب}}
: صيانة الاستشهاد: الأرشيف كعنوان (link){{استشهاد ويب}}
: صيانة الاستشهاد: الأرشيف كعنوان (link)It is, therefore, really al-Zarḳālī who must be credited with the invention of this new type of an astrolabe. Through the Libros del Saber (Vol. 3, Madrid 1864, 135-237: Libro de le acafeha) the instrument became known and famous under the name Saphaea. It is practically identical with جيما فرايز [الإنجليزية]'s Astrolabum ...