Codification and progressive development of international law. An example from the field of the environment Corporate author IUCN / ICEL Journal/Series Environmental Policy and Law | Vol. 28(2); 77 - 79; 2 p. Date 1998 Source IUCN (ID: ANA-063172) Publisher | Place of publication IOS Press | Amsterdam, The Netherlands Document type Article in periodical Language English Field of application International Subject Environment gen. Keyword Law reform/harmonization/deregulation DOI https://doi.org/10.3233/EPL-1998-28203