TY - JOUR AU - B. L. Kaufman TI - A~comparison of the power of various summation methods for divergent series with those of Ces\`aro means JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1959 SP - 131 EP - 145 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1959_5_a13/ LA - ru ID - IVM_1959_5_a13 ER -