Security Analysis of Role Based Access Control Models with Temporal and Spatiotemporal Constraints http://127.0.0.1/xmlui/handle/123456789/14143 Sun, 26 Apr 2026 12:25:31 GMT 2026-04-26T12:25:31Z Security Analysis of Role Based Access Control Models with Temporal and Spatiotemporal Constraints http://127.0.0.1/xmlui/handle/123456789/14147 Security Analysis of Role Based Access Control Models with Temporal and Spatiotemporal Constraints Mondal, Samrat Sat, 01 Aug 2009 00:00:00 GMT http://127.0.0.1/xmlui/handle/123456789/14147 2009-08-01T00:00:00Z