TY - JOUR AU - Dahmen, Wolfgang AU - Görlich, Ernst TI - The characterization problem for best approximation with exponential error orders and evaluation of entropy JO - Mathematische Nachrichten VL - 76 SN - 0025-584x CY - Weinheim PB - Wiley-VCH M1 - RWTH-CONV-062019 SP - 163-179 PY - 1977 LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:A1977DP37400011 DO - DOI:10.1002/mana.19770760112 UR - https://publications.rwth-aachen.de/record/185554 ER -