@article{MZM_2009_86_4_a1,
     author = {H. Bor},
     title = {A {Theorem} on {Absolute} {Summability} {Factors}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {491--496},
     publisher = {mathdoc},
     volume = {86},
     number = {4},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2009_86_4_a1/}
}