{"type": {"key": "/type/work"}, "title": "Auswirkungen der Migration auf die sozialen Sicherungssysteme", "subjects": ["Social security", "Social aspects", "Economic aspects"], "subject_places": ["Germany", "Emigration and immigration"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL365805A"}}], "key": "/works/OL45595165W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-06-15T15:58:03.767081"}, "last_modified": {"type": "/type/datetime", "value": "2026-06-15T15:58:03.767081"}}