TY - JOUR AU - C.T. Rajagopal AU - M.R. Parameswaran TI - Tauberian theorems invariant for a product of two summability methods. JO - Mathematische Zeitschrift PY - 1960 SP - 256 EP - 267 VL - 73 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1960__73_169845/ ID - MZ_1960__73_169845 ER -