{"key": "/works/OL4136535W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL777588A"}}], "title": "Referent USSR economic and demographic statistics for normalization of Berkeley-Duke emigre questionnaire data", "subject_places": ["Soviet Union"], "subjects": ["Economic conditions", "Population", "Statistics", "Economic history"], "subject_times": ["1975-1985"], "type": {"key": "/type/work"}, "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-10T05:26:29.367580"}, "last_modified": {"type": "/type/datetime", "value": "2025-07-13T13:28:31.999956"}}