{"title": "Derivation and integration", "subjects": ["Generalized Integrals", "Integrals, generalized"], "key": "/works/OL3924028W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL714684A"}}], "type": {"key": "/type/work"}, "covers": [12182716], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T04:52:42.596111"}, "last_modified": {"type": "/type/datetime", "value": "2021-10-22T21:48:58.586866"}}