@article{DE_1986_22_10_a19,
     author = {V. G. Dolgolaptev},
     title = {The rate of convergence of {Riesz} means of a {Fourier} series in fundamental systems of functions of the {Laplace} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1824--1826},
     publisher = {mathdoc},
     volume = {22},
     number = {10},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_10_a19/}
}