{"name": "Indo-US Seminar on \"Longwall Mining Systems for Thick Seam Mining--Assessment of Progress and Needs\" (1986 Indian School of Mines)", "last_modified": {"type": "/type/datetime", "value": "2008-04-01 03:28:50.625462"}, "key": "/authors/OL1116558A", "type": {"key": "/type/author"}, "id": 3630032, "revision": 1}