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%0 Journal Article
%A Dahmen, Wolfgang
%A Görlich, Ernst
%T The characterization problem for best approximation with exponential error orders and evaluation of entropy
%J Mathematische Nachrichten
%V 76
%@ 0025-584x
%C Weinheim
%I Wiley-VCH
%M RWTH-CONV-062019
%P 163-179
%D 1977
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:A1977DP37400011
%R 10.1002/mana.19770760112
%U https://publications.rwth-aachen.de/record/185554