@article{DE_1970_6_6_a13,
     author = {G. I. Furletov},
     title = {The equivalence of the $T_s(\alpha,\lambda_k)$ methods, $s>0$, the {Ces\`aro} and {Riesz} methods of arbitrary positive order, and {Abel's} method, for {Fourier} series in fundamental function systems of {Laplace's} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1086--1098},
     publisher = {mathdoc},
     volume = {6},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_6_a13/}
}