@article{GDZPPN002423014,
title = {Trigonometric Polynomial Approximation in the L1-Form.},
journal = {Mathematische Zeitschrift},
volume = {166},
year = {1979},
pages = {261-270},
zbl = {0415.41005},
url = {http://dml.mathdoc.fr/item/GDZPPN002423014}
}
Peherstorfer, Franz. Trigonometric Polynomial Approximation in the L1-Form.. Mathematische Zeitschrift, Tome 166 (1979) pp. 261-270. http://gdmltest.u-ga.fr/item/GDZPPN002423014/