1. Alvarez, M. 2010. Kinds of Reasons: An Essay in the Philosophy of Action. New York: Oxford University Press.
2. Alvarez, M. 2017. “Reasons for Action: Justification, Motivation, Explanation.” In The Stanford Encyclopedia of Philosophy. Winter 2017 edition, edited by Edward N. Zalta. Metaphysics Research Lab, Stanford University. https://plato.stanford.edu/archives/win2017/entries/reasons-just-vs-expl/.
3. Austin, J. L. 1962. How to do Things with Words. 2nd ed. Edited by J. O. Urmson and M. Sbisà. Cambridge, MA: Harvard University Press.
4. Breul, C. 1997. Grammatik und Bedeutung der Kausalen Satzverbände. Tübingen: Max Niemeyer Verlag.
5. The Nature of Inference