Bohemian Coins in the Tenth-to-Twelfth-Century Silver Hoards - Tomková, Kateřina (. Ibrahim ibn Yacqub at-Turtushi: Christianity, Islam and Judaism Meet in East-Central Europe, c. 800-1300 A.D. - Praha : Oriental Institute of the Academy of Sciences of the Czech Republic, 1996. - 219 s., 34 obr. příl, 1996)