WGL DC XML Schema, 2009-07-28 by Benjamin Zapilko (benjamin.zapilko@gesis.org), GESIS. based on: Simple DC XML Schema, 2002-10-09 by Pete Johnston (p.johnston@ukoln.ac.uk), Carl Lagoze (lagoze@cs.cornell.edu), Andy Powell (a.powell@ukoln.ac.uk), Herbert Van de Sompel (hvdsomp@yahoo.com). This schema extends the defined terms for Simple Dublin Core with the definition of three additional terms needed for the Leibniz Repository.