@article{01248234,
title = {On the comparison of trigonometric convolution operators with their discrete analogues for Riemann integrable functions.},
journal = {Journal of Inequalities and Applications [electronic only]},
volume = {2},
year = {1998},
pages = {297-306},
doi = {10.1155/S1025583498000198},
zbl = {0927.42001},
language = {en},
url = {http://dml.mathdoc.fr/item/01248234}
}
Nessel, R.J.; Röpsch, C. On the comparison of trigonometric convolution operators with their discrete analogues for Riemann integrable functions.. Journal of Inequalities and Applications [electronic only], Tome 2 (1998) pp. 297-306. doi : 10.1155/S1025583498000198. http://gdmltest.u-ga.fr/item/01248234/