%0 Journal Article %A S. Balcerzyk %T Power series as orthogonal expansions %J Studia Mathematica %D 1963 %P 31-39 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-23-1-31-39/ %R 10.4064/sm-23-1-31-39 %G en %F 10_4064_sm_23_1_31_39