{"type": {"key": "/type/work"}, "title": "Der Produktivit\u00e4tsbegriff in der modernen deutschen und \u00f6sterreichischen Volkswirtschaftslehre", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3179291A"}}], "key": "/works/OL38516848W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2024-07-14T08:57:54.755551"}, "last_modified": {"type": "/type/datetime", "value": "2024-07-14T08:57:54.755551"}}