Inverse theorems on approximation of functions on regular compact sets
English version (Springer): Ukrainian Mathematical Journal 28 (1976), no. 1, pp 31-38.
Citation Example: Prypik A. S. Inverse theorems on approximation of functions on regular compact sets // Ukr. Mat. Zh. - 1976. - 28, № 1. - pp. 43–52.
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