@article{MAN_1979__242_163284,
     author = {Georg Gasper and Walter Trebls},
     title = {Multiplier {Criteria} of {H\"ormander} {Type} for {Fourier} {Series} and  {Applications} to {Jacobi} {Series} and {Hankel} {Transforms.}},
     journal = {Mathematische Annalen},
     pages = {225--240},
     publisher = {mathdoc},
     volume = {242},
     year = {1979},
     zbl = {0397.42007},
     url = {http://geodesic.mathdoc.fr/item/MAN_1979__242_163284/}
}