A Higher-Level Security Scheme for Key Access on Cloud Computing. - Baris Celiktas; Ibrahim Celikbilek; Enver Ozdemir (IEEE Access, 2021)

A Hierarchical Key Assignment Scheme: A Unified Approach for Scalability and Efficiency. - Ibrahim Celikbilek; Baris Celiktas; Enver Ozdemir (IEEE Access, 2024)