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• P. Adamson, “From the Necessary Existent to God,” in P. Adamson (ed.), Interpreting Avicenna (Cambridge: 2013).

• A. Bertolacci, “Avicenna and Averroes on the Proof of God’s Existence and the Subject-Matter of Metaphysics,” Medioevo 32 (2007), 61-98.

• M.E. Marmura, “Some Aspects of Avicenna’s Theory of God’s Knowledge of Particulars,” Journal of the Americal Oriental Society 82 (1962) 299-312.

• M.E. Marmura, “Avicenna’s Proof from Contingency for God’s Existence in the Metaphysics of the Shifā’,” Medieval Studies 42 (1980), 337-52.

• T. Mayer, “Avicenna’s Burhān al-Siddiqīn,” Journal of Islamic Studies 12 (2001), 18-39.