{"first_publish_date": "1894", "key": "/works/OL1542326W", "title": "The steam-engine and other heat-engines", "authors": [{"author": {"key": "/authors/OL163827A"}, "type": {"key": "/type/author_role"}}], "type": {"key": "/type/work"}, "subjects": ["Steam-engines", "Heat-engines"], "covers": [6348667, 9031622], "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2009-12-09T21:49:49.008441"}, "last_modified": {"type": "/type/datetime", "value": "2026-09-21T22:47:56.782407"}}