1. Appendix to “Splines and histograms”;de Boor,1973
2. Convergence of a class of interpolatory splines;Meir;J. Approximation Theory,1968
3. Splines and histograms;Schoenberg,1973
4. A. Sharma and J. Tzimbalario, Quadratic splines, to appear.
5. Extremal Functional Interpolation and splines;Subotin;Dokl. Akad. Nauk SSSR,1974