@article{JDM_1923__32_145662,
     author = {Otto Sz\'asz},
     title = {\"Uber {Fouriersche} {Reihen.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {194--198},
     year = {1923},
     volume = {32},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JDM_1923__32_145662/}
}