Statistics of From al-Andalus to Khurasan. Documents from the Medieval Muslim World, éd. Petra M. Sijpesteijn, Lennart Sundelin, Sofía Torallas Tovar, Amalia Zomeño, Leyde-Boston, Brill, 2007 ; 1 vol. in-8°, xxviii-252 p. et 18 pl. (Islamic History and Civilization, Studies and Texts, 66). ISBN : 978-90-04-15567-1.