1. Aarsleff, Hans (1982): The Tradition of Condillac: The Problem of the Origin of Language in the Eighteenth Century and the Debate in the Berlin Academy before Herder, in: Ibid.: From Locke to Saussure. Essays on the Study of Language and Intellectual History, Minneapolis, pp. 146 – 209.
2. Arnauld, Antoine, Lancelot, Claude (1975): The Port-Royal Grammar, The Hague-Paris.
3. Bagchi, Kallol (1971): Kant’s Transcendental Problem as a Linguistic Problem, in: Philosophy 46: 178, pp. 341 – 345.
4. Baumgarten, Alexander (2013): Metaphysics. A Critical Translation with Kant’s Elucidations, Selected Notes and Related Materials, ed. C. Fugate and J. Hymers, London-New York.
5. Butts, Robert (1988): The Grammar of Reason: Hamann’s Challenge to Kant, in: Synthese 75, pp. 251 – 283.