, 2004a, The epistemology of religious belief, in I. Niiniluoto, M. Sintonen & J. Woleński (eds.), Handbook of epistemology, Dordrecht, Springer, pp. 673-706.
, 2004b, Universal religion and comparative philosophy, in J. Hackett & J. Wallulis (eds.), Philosophy of religion for a new century, Dordrecht, Springer, pp. 279-306.