%0 Journal Article %A Segeth, Karel %T Universal approximation by systems of hill functions %J Applications of Mathematics %D 1974 %P 403-436 %V 19 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1974.103558/ %R 10.21136/AM.1974.103558 %G en %F 10_21136_AM_1974_103558