1. [1] 2003. https://docs.oracle.com/cd/B12037_01/network.101/b10773/accessre.htm
2. 2017. Database 2 Day + Security Guide. https://docs.oracle.com/database/121/TDPSG/GUID-72D524FF-5A86-495A-9D12-14CB13819D42.htm#TDPSG90066
3. 2017. Database security guide. https://docs.oracle.com/en/database/oracle/oracle-database/21/dbseg/using-oracle-vpd-to-control-data-access.html#GUID-06022729-9210-4895-BF04-6177713C65A7
4. [4] 2023. https://www.ibm.com/docs/en/db2/11.5?topic=lbac-how-security-labels-are-compared
5. 2023. Advanced security guide. https://docs.oracle.com/en/database/oracle/oracle-database/21/asoag/introduction-to-oracle-advanced-security.html#GUID-F91E22D5-7B2D-4D67-BC96-4C738C54FFE1