1. Amadio, R., & Curien, P. L. (1998). Domains and lambda calculi. Cambridge: Cambridge University Press.
2. Asher, N. (1993). Reference to abstract objects in discourse. Dordrecht: Kluwer.
3. Asher N. (2004). Things and their aspects, manuscript.
4. Asher, N. (2011). The web of words. Cambridge: Cambridge University Press.
5. Asher, N., & Fernando, T. (1997). Effective labeling for disambiguation. In Proceedings of the second international workshop in computational linguistics, Tilburg, The Netherlands.