TY - JOUR AU - G.G. Lorentz AU - M.S. Macphail TI - Direct theorems on methods of summability III: absolute summabilty functions. JO - Mathematische Zeitschrift PY - 1953 SP - 231 EP - 246 VL - 59 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1953__59_169385/ ID - MZ_1953__59_169385 ER -