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Translated from Matematicheskie Zametki, Vol. 31, No. 2, pp. 281–298, February, 1982.
The author expresses deep gratitude to his teacher N. P. Korneichuk for discussion of, and assistance with, the obtained results.
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Zhensykbaev, A.A. Extremal properties of monosplines and best quadrature formulas. Mathematical Notes of the Academy of Sciences of the USSR 31, 145–154 (1982). https://doi.org/10.1007/BF01158137
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DOI: https://doi.org/10.1007/BF01158137