Ibrahim ibn Ya'qub at-Turtushi: Christianity, Islam and Judaism Meet in East-Central Europe, c. 800-1300 A.D. : proceedings of the international colloguy, 25-29 April 1994 / Academy of Sciences of the Czech Republic, Oriental Institute ; edited by Petr Charvát and Jiří Prosecký.    Praha : Akademie věd České republiky, Orientální ústav, 1996 . 219 s., 34 s. il. a map . ISBN 80-85425-20-3