NCSC Technical Report 005 Volume 2/5: Entity and Referential Integrity Issues In Multilevel Secure Database Management
You can download it from the following link: https://packetstormsecurity.com/files/download/14031/NCSC-TR-005-2.txt
Source: https://packetstormsecurity.com/files/14031/NCSC-TR-005-2.txt.html