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// Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika
// Archive
Izv. Vyssh. Uchebn. Zaved. Mat.,
1973
Number 1,
Pages
51–56
(Mi ivm4172)
Certain sharp inequalities between best approximations
V. V. Zhuk
Novgorod
Received:
07.10.1970
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