Jonathan Dollimore, Sexual Dissidence (New York: Oxford Univesrsity Press, 1991), Ch. 21 (pp. 329-356)
Eve Sedgwick, The Epistemology of the Closet (Berkeley: University of California Press, 1990), Chapter 3, "Wilde, Nietzsche, and the Sentimental Relations of the Male Body" (pp. 131-181).