TY  - JOUR
AU  - Wolfgang Dahmen
TI  - Trigonometrie Approximation with Exponential Error Orders. I. Construction of Asymptotically Optimal Processes; Generalized de la Vallée Poussin Sums.
JO  - Mathematische Annalen
PY  - 1977
SP  - 57
EP  - 74
VL  - 230
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1977__230_163029/
ID  - MAN_1977__230_163029
ER  -