@article{SM_1993_74_1_a8,
     author = {A. M. Diyachkov},
     title = {A~description of the sets of {Lebesque} points and points of summability for {a~Fourier} series},
     journal = {Sbornik. Mathematics},
     pages = {111--118},
     publisher = {mathdoc},
     volume = {74},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_74_1_a8/}
}