%0 Journal Article
%A Krbiľa, Jaroslav
%T Quadratic functionals with Euler's equation $(py')' + qy = 0$
%J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
%D 1974
%P 31-43
%V 14
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUPO_1974__14_1_a2/
%G en
%F AUPO_1974__14_1_a2