, 2015, Ibn sīnā's two-partite versus nine-partite logicography, in A. Koslow & A. Buchsbaum (eds.), The road to universal logic I, Basel, Birkhäuser, pp. 1-12.
, 2009a, The difficulties with Popper's nontraditional conception of metaphysics, in Z. Parusniková & R. S. Cohen (eds.), Rethinking Popper, Dordrecht, Springer, pp. 397-416.