{"type": {"key": "/type/work"}, "title": "Cost estimates for GAC treatment systems", "subjects": ["Drinking water", "Purification", "Costs"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3550298A"}}], "key": "/works/OL33462178W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2023-01-06T09:29:55.350612"}, "last_modified": {"type": "/type/datetime", "value": "2023-01-06T09:29:55.350612"}}