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Harvard University.
Case Western Reserve University.
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Birkhoff, G., Schultz, M.H. & Varga, R.S. Piecewise Hermite interpolation in one and two variables with applications to partial differential equations. Numer. Math. 11, 232–256 (1968). https://doi.org/10.1007/BF02161845
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DOI: https://doi.org/10.1007/BF02161845