1. Chebyshev approximation by γ-polynomials;Braess;J. Approximation Theory,1973
2. Dimension Theory;Hurewicz,1948
3. Approximation of Functions: Theory and Numerical Methods;Meinardus,1967
4. Spezielle rationale Splinefunktionen;Schaback;J. Approximation Theory,1973
5. Uniform approximation by Tschebyscheffian spline functions;Schumaker;J. Math. Mech.,1968