@article{DAN_1973_209_3_a13,
     author = {S. B. Topuriya},
     title = {Abel summability of a differential {Fourier} series},
     journal = {Doklady Akademii Nauk},
     pages = {569--572},
     publisher = {mathdoc},
     volume = {209},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_209_3_a13/}
}