{"type": {"key": "/type/work"}, "title": "The problem of the origin of serfdom in the Roman empire", "subjects": ["Peasants", "Serfdom (Roman law)", "Land tenure"], "subject_places": ["Rome"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL328873A"}}], "key": "/works/OL42298903W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2024-12-27T14:25:22.852671"}, "last_modified": {"type": "/type/datetime", "value": "2024-12-27T14:25:22.852671"}}