{"subjects": ["Mathematics", "Logic, symbolic and mathematical"], "key": "/works/OL46454W", "title": "Excursions into mathematics", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL34229A"}}], "type": {"key": "/type/work"}, "covers": [1910731], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-10-15T11:34:21.437031"}, "last_modified": {"type": "/type/datetime", "value": "2021-09-15T18:37:43.645816"}}