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Universidad Catolica de Chile (Programa de las Naciones Unidas para el Medio Ambiente (PNUMA) para el Universidad Catolica de Chile, 2003)

United Nations Environment Programme (UNEP, 2008)

United Nations Environment Programme (United Nations Environment Programme (UNEP), 2002)

Gordon Hagart, Ivo Knoepfel (UNEP, 2007)

United Nations Educational Scientific and Cultural Organization (UNESCO, 2003)

United Nations Environment Programme (2009)

Secretaríadel Ambiente(SEAM), Paraguay (2009)

Zambia (Government of Zambia, 2009)

United Nations Economic Commission for Europe (United Nations Economic Commission for Europe (UNECE), 2008)

United Nations Environment Programme and World Glacier Monitoring Service (UNEP, 2008)