See Justin Hughes, The Philosophy of Intellectual
Property, Georgetown L.J. (1988); Lawrence Becker, Deserving to Own Intellectual
Property, 68 Chicago-Kent L. Rev. 609 (1993); Wendy Gordon, A Property
Right in Self-Expression, 102 Yale L.J. 1533 (1993); James W. Child, The
Moral Foundations of Intangible Property, The Monist (1990).