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Caribbean Sea/Colombia & Venezuela, Central America & Mexico-GIWA Regional Assessment 3b, 3c
(United Nations Environment Programme (UNEP), GEF, University of Kalmar, Sweden, 2006)
Ozonaction newsletter no. 36
(UNEP, 2000)
Tunza vol. 4 no. 1: deserts and drylands
(UNEP, 2006)
Tunza vol. 7 No.1: your Planet needs you
(UNEP, 2009)
Ozonaction newsletter no. 40
(UNEP, 2001)