TY - JOUR AU - S. Kaczmarz TI - Notes on orthogonal series II JO - Studia Mathematica PY - 1934 SP - 103 EP - 106 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-5-1-103-106/ DO - 10.4064/sm-5-1-103-106 LA - en ID - 10_4064_sm_5_1_103_106 ER -