An error analysis of iterated defect correction methods for linear differential-algebraic equations. - Bülent Karasözen; S. Somali (Int. J. Comput. Math., 1996)

The iterated defect correction methods for singular two-point boundary value problems. - S. Ertem; S. Somali (Int. J. Comput. Math., 1998)

Implicit midpoint rule and extrapolation to singularly perturbed boundary alue problems. - S. Somali; S. Davulcu (Int. J. Comput. Math., 2000)

Implicit Midpoint Rule to the Nonlinear Degenerate Boundary Value Problems. - S. Somali (Int. J. Comput. Math., 2002)

Least squares methods for solving singularly perturbed two-point boundary value problems using Bézier control points. - M. Evrenosoglu; S. Somali (Appl. Math. Lett., 2008)