1. Brent, J. (1998). Charles Sanders Peirce: A Life (2nd ed.). Bloomington: Indiana University Press.
2. Brown, W. M. (1983). The economy of Peirce’s abduction. Transactions of the Charles S. Peirce Society 397–411.
3. Burks, A. W. (1946). Peirce’s theory of abduction. Philosophy of Science, 4, 301–306.
4. Cournot, A. (1929 [1838]). Researches into the Mathematical Principles of the Theory of Wealth (N.T. Bacon, Trans.). New York: Macmillan.
5. Douven, I. (2017a). Abduction. In Stanford Encyclopedia of Philosophy (Summer 2017 Edition), E. N. Zalta (Ed.), https://plato.stanford.edu/archives/sum2017/entries/abduction/.