Mahmoud A. ZakyDepartment of MathematicsPotvrđena adresa e-pošte na nrc.sci.eg
Eid H. DohaCairo UniversityPotvrđena adresa e-pošte na sci.cu.edu.eg
Ali H. BhrawyAssociate Professor of Numerical Analysis, Mathematics Department, Beni-Suef University, EgyptPotvrđena adresa e-pošte na science.bsu.edu.eg