TY - JOUR AU - A. H. Turetzkii TI - On a class of functions for which the given method of summation provides an approximation of the order of the best one JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1965 SP - 132 EP - 139 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1965_5_a17/ LA - ru ID - IVM_1965_5_a17 ER -