Draft Arctic national wildlife refuge, Alaska, coastal plain resource assessment : report and recommendation to the Congress of the United States and legislative environmental impact statement november 1986
United States Geological Survey (USGS)
Polar bears: proceedings of the 15th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, Copenhagen, Denmark, 29 June-3 July 2009
These 15th Proceedings provide an overview of the ongoing research and management activities on polar bears in the circumpolar Arctic. Together with the previous 14 proceedings, they provide an historic record of the international effort in protecting, studying, and managing polar bears. The document addresses more recent concerns of threats arising as a consequence of increased human activities in both the Arctic and in regions far beyond the Arctic.