{"type": {"key": "/type/work"}, "title": "Sanierung der Oberfl\u00e4chengew\u00e4sser", "subjects": ["Water", "Pollution", "Law and legislation", "Congresses", "Purification", "Drinking water"], "subject_places": ["Germany"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4117934A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL16415106A"}}], "key": "/works/OL45516965W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-05-21T08:50:11.842111"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-21T08:50:11.842111"}}