{"type": {"key": "/type/work"}, "title": "Retrofit Costs of SO2 and NOx Control at 200 U. S. Coal-Fired Plants", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL62371A"}}], "key": "/works/OL40925014W", "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2024-09-28T09:53:43.514387"}, "last_modified": {"type": "/type/datetime", "value": "2025-07-31T17:21:47.929757"}}