Books on Amazon:
Centered World/Indexicality/Chalmers: if a centered world is once determined, i.e. if the localization of the center (e.g., I) is established, then a primary intension (e.g., water and H2O) provides a perfect non-indexical property.
Concepts: now one could assume that the term zombie would simply not be used in a zombie-centered world.
ChalmersVs: the situation is more complicated: primary intensions do not require the presence of the original concept. This suggests that a posteriori necessity is not necessary for my arguments with regard to consciousness.
Intensions: the falling apart of primary and secondary intensions causes an uncertainty with regard to water: something watery does not have to be H2O. But that does not apply to consciousness. If something feels like a conscious experience, then it is conscious experience, no matter in which world.
The Conscious Mind Oxford New York 1996
Constructing the World Oxford 2014