{"key": "/works/OL12213541W", "title": "Design of surface mine haulage roads", "first_publish_date": "1978", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL5316676A"}}], "type": {"key": "/type/work"}, "subjects": ["Roads", "Strip mining", "Mine haulage", "Design and construction"], "covers": [11719520], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-11T06:21:23.474050"}, "last_modified": {"type": "/type/datetime", "value": "2021-08-20T05:35:22.876949"}}