{"type": {"key": "/type/work"}, "title": "Catalogue of a collection of paintings by Karl Madsen", "subjects": ["European Painting", "Exhibitions", "Painting", "Private collections"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4638409A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL43219A"}}], "key": "/works/OL44751128W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-01-14T13:37:43.246392"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-14T13:37:43.246392"}}