Hilary Putnam: Pragmatism and Realism - Gabor Forrai reviews this book edited by James Conant and Urszula M. Zeglen. From Notre Dame Philosophical Reviews.
Internal Realism: Transcendental Idealism? - A 1988 paper by Curtis Brown, published in Midwest Studies in Philosophy. Considers the philosophical place of Putnam's "internal realist" doctrine.