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van Vuuren, DetlefBakkes, Jan(United Nations Environment Programme (UNEP), and The Netherlands National Institute of Public Health and the Environment (RIVM), 1999)
San Diego Museum of Natural HistoryInstituto Argentino de Investigaciones de las Zonas Áridas (IADIZA)Gobabeb Training and Research CentreUnited Nations Environment Programme (UNEP)(United Nations Environment Programme (UNEP), 2006)