{"last_modified": {"type": "/type/datetime", "value": "2010-12-04T19:34:18.076226"}, "title": "Preparation of ammonium paratungstate from a sodium tungstate-sodium chloride phase", "created": {"type": "/type/datetime", "value": "2009-12-10T08:31:59.961214"}, "subjects": ["Ammonium paratungstate", "Metallurgy", "Solvent extraction", "Tungsten"], "latest_revision": 2, "key": "/works/OL5067251W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1109881A"}}], "type": {"key": "/type/work"}, "revision": 2}