Li, Zicai An approach for combining the Ritz-Galerkin and finite element method. (English) Zbl 0541.65069 J. Approximation Theory 39, 132-152 (1983). Reviewer: S.Zhou MSC: 65N30 65N15 35J25 PDFBibTeX XMLCite \textit{Z. Li}, J. Approx. Theory 39, 132--152 (1983; Zbl 0541.65069) Full Text: DOI
Dahmen, Wolfgang Approximation by linear combinations of multivariate B-splines. (English) Zbl 0487.41012 J. Approximation Theory 31, 299-324 (1981). MSC: 41A15 41A45 PDFBibTeX XMLCite \textit{W. Dahmen}, J. Approx. Theory 31, 299--324 (1981; Zbl 0487.41012) Full Text: DOI
Barnhill, Robert E.; Mansfield, Lois Error bounds for smooth interpolation in triangles. (English) Zbl 0286.41001 J. Approximation Theory 11, 306-318 (1974). MSC: 41A05 41A63 41A20 65D05 65N15 65N30 PDFBibTeX XMLCite \textit{R. E. Barnhill} and \textit{L. Mansfield}, J. Approx. Theory 11, 306--318 (1974; Zbl 0286.41001) Full Text: DOI