Modeling and analysis of a multilevel caching in distributed database systems. - Doaa Saad El Zanfaly; Reda A. Ammar; Ahmed Sharaf Eldin (ISCC, 2004)

Enhancing Aggregation over Uncertain Databases. - Nermin Abdel-Hakim Othman; Ahmed Sharaf Eldin; Doaa Saad El Zanfaly (CIT/IUCC/DASC/PICom, 2015)

Handling Uncertainty in Database: An Introduction and Brief Survey. - Nermin Abdel-Hakim Othman; Ahmed Sharaf Eldin; Doaa Saad El Zanfaly (Comput. Inf. Sci., 2015)