1. Allen, Colin. 2014. Umwelt or Umwelten? How should shared representation be understood given such diversity? Semiotica 198: 137–158.
2. Ben-Yami, Hanoch. 1997. Against characterizing mental states as propositional attitudes. The Philosophical Quarterly 47 (186): 84–89.
3. Craik, Kenneth James Williams. 1952. The nature of explanation. Vol. 445. Cambridge: CUP Archive.
4. Davidson, Donald. 1982. Rational animals. Dialectica 36 (4): 317–327.
5. Dennett, Daniel Clement. 1989. The intentional stance. Cambridge, MA: MIT Press.