@article{10_4064_ap_18_1_1_13,
     author = {J. Meder},
     title = {Absolute {N\"orlund} summability and orthogonal series},
     journal = {Annales Polonici Mathematici},
     pages = {1--13},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1966},
     doi = {10.4064/ap-18-1-1-13},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-18-1-1-13/}
}