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United Nations Environment Programme ,  [Greening the blue helmets: Environment, Natural Resources and UN Peacekeeping Operations - Executive Summary] ,  Greening the blue helmets: Environment, Natural Resources and UN Peacekeeping Operations - Executive Summary

United Nations Environment Programme ,  International Resource Panel ,  [Assessing Mineral Resources in Society: Environmental Risks and Challenges of Anthropogenic Metals Flows and Cycles - Summary] ,  Assessing Mineral Resources in Society: Environmental Risks and Challenges of Anthropogenic Metals Flows and Cycles - Summary