Fallmerayer, II, p. 435 Bon, p. 112 Krause, p. 387 Miller, pp. 355-401, esp. p. 356 Bees, Encyclopaedia of Islām Finlay, Encyclopaedia of Islām, IV, and V Pouqueville, I, p. 51 Dodwell, II, p. 417 Leake, I, p. 87 D' Ohsson, VII, p. 302 Curtius, I, p. 234
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