{"lc_classifications": ["QE435 A3"], "key": "/works/OL12196741W", "title": "Gamma-ray spectrometry of rocks", "first_publish_date": "1970", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1967045A"}}], "type": {"key": "/type/work"}, "subjects": ["Gamma ray spectrometry", "Spectra", "Rocks"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-11T06:19:02.875090"}, "last_modified": {"type": "/type/datetime", "value": "2025-09-27T13:35:04.380043"}}