Application of spline functions to neutral delay-differential equations. - M. A.-K. Ibrahim; A. El-Safty; Shadia M. Abo-Hasha (Int. J. Comput. Math., 1996)

Chebyshev solution for stiff delay differential equations. - A. El-Safty; M. A. Hussien (Int. J. Comput. Math., 1998)

Stability of 2h-step spline method for delay differential equations. - A. El-Safty; Shadia M. Abo-Hasha (Int. J. Comput. Math., 2000)

Existence, uniqueness and stability of the spline function for delay controlled dynamic system. - A. El-Safty; M. S. Salim; M. A. El-Khatib (Int. J. Comput. Math., 2001)

Convergence of the Spline Function for Delay Dynamic System. - A. El-Safty; M. S. Salim; M. A. El-Khatib (Int. J. Comput. Math., 2003)