John Macnamara
(1995)., A category-theoretic approach to Aristotle's term logic, with special reference to syllogisms, in M. Marion & R. S. Cohen (eds.), Québec studies in the philosophy of science, part I, Dordrecht, Springer, pp. 57-68.
(1986)., But what is belief itself?, in L. Mos (ed.), Annals of theoretical psychology, Dordrecht, Springer, pp. 357-364.