{"last_modified": {"type": "/type/datetime", "value": "2010-12-03T18:41:12.793143"}, "title": "The relative effects of a live and videotaped instructor on ratings of perceived exertion and subjective feelings of students in an aerobic exercise class", "created": {"type": "/type/datetime", "value": "2009-12-11T02:49:30.124645"}, "subjects": ["Aerobic dancing", "Exercise for women", "Fatigue", "Psychological aspects", "Psychological aspects of Aerobic dancing", "Psychological aspects of Exercise for women", "Psychological aspects of Fatigue", "Television in physical education"], "latest_revision": 3, "key": "/works/OL10353296W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4285555A"}}], "type": {"key": "/type/work"}, "revision": 3}