%0 Journal Article
%A Najzar, Karel
%T Error bounds for eigenvalues and eigenfunctions of some ordinary differential operators by the method of least squares
%J Commentationes Mathematicae Universitatis Carolinae
%D 1971
%P 235-248
%V 12
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1971__12_2_a2/
%G en
%F CMUC_1971__12_2_a2