, 2007, 'In memoriam Richard Rorty', Symposium 11 (2), 409-414.
, 1999, All the daring of the lover of knowledge is permitted again, in B. Babich (ed.), Nietzsche, epistemology, and philosophy of science II, Dordrecht, Springer, pp. 123-140.
, 1994a, 'Is Locke's semiotic inconsistent?', The American Journal of Semiotics 11 (3-4), 23-31.