Time to measure the impacts of certification on sustainable forest management Author Ozinga S. Journal/Series Unasylva | Vol. 55(219); 33 - 38; 6 p. Date 2004 Source IUCN (ID: ANA-073302) Publisher | Place of publication FAO | Rome, Italy Document type Article in periodical Language English Field of application International Subject Forestry Keyword Forest management/forest conservation Standards Sustainable use Certification