@article{SM_1985_50_1_a14,
     author = {A. Yu. Petrovich},
     title = {On the summability of generalized {Fourier} series by {Abel's} method},
     journal = {Sbornik. Mathematics},
     pages = {227--239},
     publisher = {mathdoc},
     volume = {50},
     number = {1},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1985_50_1_a14/}
}