{"created": {"type": "/type/datetime", "value": "2012-07-18T05:47:19.751897"}, "subjects": ["Mathematics", "Study and teaching (Elementary)", "Reasoning", "Logic, symbolic and mathematical"], "latest_revision": 3, "key": "/works/OL16702184W", "title": "Activities for elementary mathematics teachers", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL535887A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2020-08-23T12:20:00.432459"}, "covers": [1175799], "revision": 3}