, 2017a, A chromatic hexagon of psychic dispositions, in M. Silva (ed.), How colours matter to philosophy, Dordrecht, Springer, pp. 273-288.
, 2017b, Being aware of rational animals, in G. Dodig Crnkovic & R. Giovagnoli (eds.), Representation and reality in humans, other living organisms and intelligent machines, Dordrecht, Springer, pp. 319-331.
, 2017c, Is modern logic non-aristotelian?, in V. Markin & D. Zaitsev (eds.), The logical legacy of Nikolai Vasiliev and modern logic, Dordrecht, Springer, pp. 19-41.
, 2015, Logical autobiography 50, in A. Koslow & A. Buchsbaum (eds.), The road to universal logic II, Basel, Birkhäuser, pp. 19-104.
, 2007, 'Sentence, proposition and identity', Synthese 154 (3), 371-382.
with Krause, D. , 2007, 'New trends in the foundations of science', Synthese 154 (3), 345-347.
with Krause, D. (eds) , 2007a, Synthese 154 (3).