Aristotle on the activity of being
Unity, Identity and Explanation in Aristotle's Metaphysics
Revised papers from a conference on Aristotle's metaphysics held at Oriel College, Oxford, in July 1989.
Kosman, Aryeh. “Aristotle on the Activity of Being” in Unity, Identity and Explanation in Aristotle’s Metaphysics, edited by T.Scaltsas, D. Charles, and M.L. Gill, Oxford: Clarendon Press, 1994.