1. Cubic splines on uniform meshes;Nilson;Comm. A.C.M.,1970
2. E. N. Nilson, Bivariate cubic splines on uniform meshes, Comm. A.C.M., to appear.
3. Cubic splines on the real line;Ahlberg;J. Approximation Theory,1968
4. Polynomial splines on the real line;Ahlberg;J. Approximation Theory,1970
5. The Theory of Splines and their Applications;Ahlberg,1967