TY - JOUR AU - G. Freud AU - S. Knapowski TI - On linear processes of approximation (III) JO - Studia Mathematica PY - 1964 SP - 373 EP - 384 VL - 25 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-25-3-373-384/ DO - 10.4064/sm-25-3-373-384 LA - en ID - 10_4064_sm_25_3_373_384 ER -