Uniform difference method for singularly perturbed Volterra integro-differential equations. - G. M. Amiraliyev; Sebaheddin Sevgin (Appl. Math. Comput., 2006)

On the perturbation of Volterra integro-differential equations. - Soon-Mo Jung; Sebaheddin Sevgin; Hamdullah Sevli (Appl. Math. Lett., 2013)