{"type": {"key": "/type/work"}, "title": "Investigation of railroads, holding companies, and affiliated companies. Preliminary report", "subjects": ["Holding companies", "Railroads"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4767185A"}}], "key": "/works/OL44150761W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-10-03T18:38:11.074224"}, "last_modified": {"type": "/type/datetime", "value": "2025-10-03T18:38:11.074224"}}