Broad, C. D. Leibniz's predicate-in-notion principle and some of its alleged consequences.
Couturat, L. On Leibniz's metaphysics.
Friedrich, C. J. Philosophical reflections of Leibniz on law, politics, and the state.
Curley, E. M. The root of contingency.
Hacking, I. Individual substance.
Hintikka, J. Leibniz on plenitude, relations, and the "reign of law."
Ishiguro, H. Leibniz's theory of the ideality of relations.
Kneale, M. Leibniz and Spinoza on activity.
Koyré, A. Leibniz and Newton.
Lovejoy, A. O. Plenitude and sufficient reason in Leibniz and Spinoza.
Mates, B. Leibniz on possible worlds.
Russell, B. Recent work on the philosophy of Leibniz.
Wilson, M. D. On Leibniz's explication of "necessary truth."
