@article{PIM_1958_S_S_XII_12_a12,
     author = {Manojlo Maravi\'c},
     title = {\"Uber {Die} {Gאּ\ensuremath{\theta}-Summierbarkeit} {Der} {Verallgemeinerten} {Fourier-Reihen}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {137 },
     publisher = {mathdoc},
     volume = {_S_S_XII},
     number = {12},
     year = {1958},
     url = {http://geodesic.mathdoc.fr/item/PIM_1958_S_S_XII_12_a12/}
}