%0 Journal Article
%A Babuška, Ivo
%T Approximation by Hill functions
%J Commentationes Mathematicae Universitatis Carolinae
%D 1970
%P 787-811
%V 11
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a10/
%G en
%F CMUC_1970__11_4_a10