Justice Trends Magazine 10th Edition (2023) Sir Tim Purcell, Head of Australasia, Core Systems, Justice Trends #10, pages 88-90
Justice Trends Magazine 9th Edition (2022) Patricia O’Hagan, Core Systems and Jason Mereness, APPA Connect. Justice Trends Edition #9, pages 98-100
Addressing the Corrections Crisis with Software Technology (2010) Patricia O’Hagan, Edward Hanna, Core Systems and Roy Sterritt, University of Ulster. IEEE Computer Magazine, Pages 90-93.
Interfacing with Next Generation Tagging and Tracking Systems for Prisons and Correctional Facilities (2010) Catherine McFarland, Roy Sterritt, Patricia O’Hagan, Edward Hanna, University of Ulster, Core Systems, 2010.
Tagging and Tracking System for Prisons and Correctional Facilities – A Design Roadmap (2008) Mulholland CL, Sterritt R, OHagan P, Hanna E, Proceedings of Fifth IEEE International Workshop on Engineering of Autonomic and Autonomous Systems (ease 2008), Belfast, Northern Ireland, 31st March – 4th April, IEEE CS Press, Pages 143-153