TY - JOUR AU - M. D. Kalashnikov AU - G. P. Gubanov AU - V. I. Dukhovchenko TI - On the approximation of continuous periodic functions by arithmetic means JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1965 SP - 65 EP - 73 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1965_5_a9/ LA - ru ID - IVM_1965_5_a9 ER -