1. Wittgenstein: Whose Philosopher?;Anscombe;Royal Institute of Philosophy Supplement,1990
2. Origins of Objectivity
3. Taking Wittgenstein at His Word
4. Wittgenstein on Understanding;Goldfarb;Midwest Studies in Philosophy,1992
5. The Laws of Thought and the Power of Thinking;Haase;Canadian Journal of Philosophy (Supplement),2009