TY - JOUR AU - Sulaiman, W.T. TI - On a relation between two summability methods JO - Portugaliae mathematica PY - 1990 SP - 445 EP - 453 VL - 47 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1990__47_4_115734/ LA - en ID - PORMA_1990__47_4_115734 ER -