TY - JOUR AU - Fridy, J.A. TI - Mercerian-type theorems for absolute summability JO - Portugaliae mathematica PY - 1974 SP - 141 EP - 145 VL - 33 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1974__33_3_115230/ LA - en ID - PORMA_1974__33_3_115230 ER -