' Environmental flows ' and international watercourses Author Iza A. Journal/Series IUCN Environmental Law Programme Newsletter | No. 1; 4 - 7; 4 p. Date 2002 Source IUCN (ID: ANA-068606) Publisher | Place of publication IUCN-ELC | Bonn, Germany Document type Article in periodical Language English Field of application International Subject Water Keyword Freshwater resources management Other references Treaty Convention on the Protection and Use of Transboundary Watercourses and International Lakes Treaty | Multilateral | Helsinki | May 7, 1992 Keyword: Precautionary principle Source: IUCN (ID: TRE-001142)