1. On quadratic Spline;Behforooz;Applied Mathematics Letters,1988
2. Error Bounds for Cubic Spline-on-Spline Interpolation;Dolezal;J. Approx. Theory,1982
3. Cubic and Quintic Spline-on-Spline Interpolation;Papamichael;J. Comp. and Appl. Math.,1987
4. On Quadratic Spline Interpolation;Usmani;BIT,1987