@article{JRAM_1914__144_149415,
     author = {Leopold Fej\'er},
     title = {\"Uber konjugierte trigonometrische {Reihen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {48--56},
     publisher = {mathdoc},
     volume = {144},
     year = {1914},
     zbl = {45.0405.03},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1914__144_149415/}
}