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United Nations Environment Programme ,  [Guide des barrages et retenues de stériles: Conception, construction, exploitation et réhabilitation] ,  [A Guide to Tailings Dams and Impoundments: Design, Construction, Use and Rehabilitation] ,  A Guide to Tailings Dams and Impoundments: Design, Construction, Use and Rehabilitation

United Nations Environment Programme ,  Institute of Water Management of the Ministry of Environmental Protection and Water Management of the German Democratic Republic ,  [Eutrosym ‘76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water – Vol. IV] ,  Eutrosym ‘76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water – Vol. IV

United Nations Environment Programme ,  International Lake Environment Committee Foundation (ILEC) ,  [International Shiga Forum on Technology for Water Management in the 21st Century - Proceedings] ,  International Shiga Forum on Technology for Water Management in the 21st Century - Proceedings