@article{DAN_1971_200_6_a1,
     author = {L. D. Gogoladze},
     title = {On $(H,k)$ summability of multiple trigonometric {Fourier} series},
     journal = {Doklady Akademii Nauk},
     pages = {1266--1268},
     publisher = {mathdoc},
     volume = {200},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_6_a1/}
}