%0 Journal Article
%A Rachůnková, Irena
%T Periodic boundary value problems for second order differential equations
%J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
%D 1990
%P 83-91
%V 29
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUPO_1990__29_1_a6/
%G en
%F AUPO_1990__29_1_a6