@article{MZ_1967__99_170789,
     author = {E.C. Daniel},
     title = {The {Non-Local} {Character} of {Summability} {|N,} pn| of a {Fourier} {Series} with {Factors.}},
     journal = {Mathematische Zeitschrift},
     pages = {392--399},
     publisher = {mathdoc},
     volume = {99},
     year = {1967},
     zbl = {0185.31103},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__99_170789/}
}