@article{PORMA_1990__47_4_115734,
     author = {Sulaiman, W.T.},
     title = {On a relation between two summability methods},
     journal = {Portugaliae mathematica},
     pages = {445--453},
     year = {1990},
     volume = {47},
     number = {4},
     mrnumber = {1090483},
     zbl = {0727.40008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1990__47_4_115734/}
}