@article{IVM_1974_6_a7,
     author = {K. M. Slepenchuk and N. I. Udalaya},
     title = {Absolute summability of series by matrix {methods.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {65--73},
     publisher = {mathdoc},
     number = {6},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_6_a7/}
}