{"last_modified": {"type": "/type/datetime", "value": "2010-12-05T05:54:29.354644"}, "title": "On the nonexistence of perfect 4-hamming-error-correcting codes", "created": {"type": "/type/datetime", "value": "2009-12-10T19:20:28.444763"}, "subjects": ["Error-correcting codes (Information theory)"], "latest_revision": 2, "key": "/works/OL6543323W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1749444A"}}], "type": {"key": "/type/work"}, "revision": 2}