The World Trade Organization, 2015: t.p. (Michael Hahn)

LC database, viewed December 10, 2015 (hdg.: Hahn, Michael J.; usage: Michael J. Hahn)

Europa-Institut, Saarland University WWW site, viewed December 10, 2015 (Prof. Dr. Iur. Michael J. Hahn, LL.M. (Michigan); professor at the University of Lausanne; was a professor of law at the University of Waikato, Hamilton, New Zealand; doctorate from the University of Heidelberg; master's degree from the University of Michigan Law School)