TY - JOUR AU - T. Markiewicz TI - Some remarks of coefficients of double Fourier series JO - Commentationes Mathematicae PY - 1968 SP - 33 EP - 37 VL - 11 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v11i1.5600/ DO - 10.14708/cm.v11i1.5600 LA - pl ID - 10_14708_cm_v11i1_5600 ER -