{"type": {"key": "/type/work"}, "title": "The science of railways", "subjects": ["Railroads", "Transportation", "History"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL162091A"}}], "key": "/works/OL32861978W", "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2022-12-21T15:40:48.888907"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-31T12:33:24.566802"}}