Development of studies on the exact solution of extremal problems of the theory of best approximation
English version (Springer): Ukrainian Mathematical Journal 42 (1990), no. 1, pp 1-13.
Citation Example: Babenko V. F. Development of studies on the exact solution of extremal problems of the theory of best approximation // Ukr. Mat. Zh. - 1990. - 42, № 1. - pp. 4–17.
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