and M.Sommer, Interpolation and almost interpolation by weak Chebyshev
spaces, in "Approximation Theory IX" (C.K.Chui and L.L.Schumaker, Eds.),
Vol.2: "Computational Aspects", pp. 25-32, Vanderbilt University Press,
Abstract: Some new results on univariate interpolation by weak
Chebyshev spaces, using conditions of Schoenberg-Whitney type and the concept
of almost interpolation sets, are given.
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