1. Barker, C. (2009). Clarity and the grammar of skepticism. Mind and Language, 24(3): 253–73.
2. Barker, C. and Taranto, G. (2003). The paradox of asserting clarity. In Koskinen, P. (ed.), Proceedings of the Western Conference on Linguistics (WECOL) 2002, Vol. 14, pp. 10–21. Department of Linguistics, California State University, Fresno.
3. Kyburg, H. (1961). Probability and the Logic of Rational Belief. Wesleyan University Press, Middletown.
4. Piñon, C. (2006). Modal adverbs again. Presented at the Workshop on Syntax, Lexicon and Event Structure, the Hebrew University of Jerusalem.
5. Taranto, G. (2006). Discourse Adjectives. Routledge.