. "article by Andrew E. Derocher & Ian Stirling published July 1990 in Canadian Journal of Zoology"@en . . . "Distribution of polar bears"@nl . "Distribution of polar bears (Ursus maritimus) during the ice-free period in western Hudson Bay"@en . . "wetenschappelijk artikel"@nl . . "68" . "Distribution of polar bears (Ursus maritimus) during the ice-free period in western Hudson Bay"@en . . "1395-1403" . . "Distribution of polar bears"@nl . . "10.1139/Z90-208" . "im Juli 1990 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u043B\u0438\u043F\u043D\u0456 1990"@uk . . "Distribution of polar bears (Ursus maritimus) during the ice-free period in western Hudson Bay"@en . . "Distribution of polar bears (Ursus maritimus) during the ice-free period in western Hudson Bay"@en . . . . "249540825" . . . . . . . "7" . . . "1990-07-01T00:00:00Z"^^ . "Distribution of polar bears"@nl .