de Villiers, Johan, and Mpafereleni Rejoyce Gavhi-Molefe. “Geometric Convergence Rates for Cardinal Spline Subdivision With General Integer Arity”. J. Numer. Anal. Approx. Theory 48, no. 1 (September 8, 2019): 32–61. Accessed April 12, 2025. https://ictp.acad.ro/jnaat/journal/article/view/1164.