Professor José Roldán Xopa EditorProfessor David Lopez Author; Professor Zamora's biography:Professor of Law, University of Houston Law Center, since 1978Co-Director, International Law Institute, University of HoustonDean, University of Houston Law Center (1995-2000)Fulbright Professor, National Autonomous University of Mexico (UNAM) (1982-83)Visiting Research Fellow, Instituto de Investigaciones Jurídicas, UNAM (1982-83, 1991-92, 2001-03)Visiting Professor, Yale Law School (1994)Attorney, The World Bank (1976-1978)Lecturer, Center for American and International Law, Dallas, Texas (1989-2002)