%0 Journal Article %A Waldemar PopiƄski %T On least squares estimation of Fourier coefficients and of the regression function %J Applicationes Mathematicae %D 1993 %P 91-102 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-22-1-91-102/ %R 10.4064/am-22-1-91-102 %G en %F 10_4064_am_22_1_91_102