@article{DAN_1958_122_3_a7,
     author = {F. I. Kharshiladze},
     title = {Saturation classes for some summation processes},
     journal = {Doklady Akademii Nauk},
     pages = {352--355},
     publisher = {mathdoc},
     volume = {122},
     number = {3},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_122_3_a7/}
}