Wittgenstein Rules and Private Language: An Elementary Exposition

Kripke's Wittgenstein on Rules and Private Language at 40 (Cambridge Philosophical Anniversaries)

Wittgenstein and the Possibility of Meaning: "To Follow a Rule Blindly"

Wittgenstein on Private Language, Sensation and Perception (Elements in the Philosophy of Ludwig Wittgenstein)

Wittgenstein: To Follow a Rule (International Library of Philosophy)