1. Albahari, M. 2009. Witness consciousness: Its definition, appearance and reality. Journal of Consciousness Studies 16 (1): 62–84.
2. Brentano, F. 1874/1995. Psychology from an empirical standpoint. introduction by Peter Simons, Trans. A.C. Rancurello, D.B. Terrell, and L. McAlister. London: Routledge.
3. Locke, J. 1689–1700/1975. An essay concerning human understanding, ed. P. Nidditch Oxford: Clarendon Press.
4. Montague, M. 2016. The Given. Oxford: Oxford University Press.
5. Putnam, H. 1975. The meaning of “meaning”. In Mind, Language and Reality: Philosophical Papers, ed. H. Putnam, vol. 2. Cambridge: Cambridge University Press.