"An apocryphal letter from the Arabic philosopher al-Kindi to Theodore, Frederick II's astrologer, concerning Gog and Magog, the Enclosed Nations, and the scourge of the Mongols", C. S. F. Burnett, "Viator - Medieval and Renaissance Studies" 15, 1984 : [recenzja]

Studia Źródłoznawcze. Commentationes, Tom 32-33 (1990) s. 255-256
, C. S. F. Burnett (aut. dzieła rec.)