Abdallah, E. A. F., M.El-Said, E. A.Hashish, and I. M.Barseen,
"Six – port reflecatometer using three coupled microstrip lines on multi – dielectric interfaces",
International union of Radio Science Symposium, lille, France, july 28- Sept.5,, 1996.
Attia, A. F., A. A. Abdel-Ghaly, and H. M. Aly,
"Maximum Likelihood Estimation of Step-Stress Accelerated Life Test for The Parameters of Pareto Distribution Under Censoring",
Annual Conference on Statistics, Computer Science and Operation Research, Institute of Statistical Studies and Research, Cairo University, December, 1996.