Yang, Li, and Raimund K. Ege. “Security Enforced Mediation Systems for Data Integration”. INFOCOMP Journal of Computer Science 5, no. 1 (March 1, 2006): 1–10. Accessed December 25, 2024. https://infocomp.dcc.ufla.br/index.php/infocomp/article/view/116.